Checking whether a certain number is prime
$begingroup$
Using the primality test on this site, I found that the concatenation of the digit reversal of the first 548 odd primes in the reverse order is a prime!. It is only a 1998-digit prime, but it took more than an hour for the site's calculator to state that it is a prime.
The calculation went super slowly. Could someone here confirm that this result is correct?.
The result I got is 7693749334931393 ... 91713111753.
prime-numbers
edited 3 mins ago
Henrik Schumacher
50.4k469144
asked 4 hours ago
Toni SToni S
132
New contributor
Toni S is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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add a comment |
$begingroup$
Using the primality test on this site, I found that the concatenation of the digit reversal of the first 548 odd primes in the reverse order is a prime!. It is only a 1998-digit prime, but it took more than an hour for the site's calculator to state that it is a prime.
The calculation went super slowly. Could someone here confirm that this result is correct?.
The result I got is 7693749334931393 ... 91713111753.
prime-numbers
edited 3 mins ago
Henrik Schumacher
50.4k469144
asked 4 hours ago
Toni SToni S
132
New contributor
Toni S is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
1
$begingroup$
Are you asking how to check if a number is prime using Mathematica? If so, tryPrimeQ.
$endgroup$
– bobthechemist
4 hours ago
1
$begingroup$
Here's a free (fast) way to test this. It givesTruein under a second. It's just building off free Wolfram Cloud stuff so you can give that a check too if you need something else like this. It takes like half a second for the notebook to load, but after that you can do whatever with it.
$endgroup$
– b3m2a1
3 hours ago
$begingroup$
Welcome to Mathematica.SE. Are you sure you are posting on the right site? There is nothing in your question making it clear that it is concerned with Mathematica software.
$endgroup$
– m_goldberg
2 hours ago
add a comment |
$begingroup$
Using the primality test on this site, I found that the concatenation of the digit reversal of the first 548 odd primes in the reverse order is a prime!. It is only a 1998-digit prime, but it took more than an hour for the site's calculator to state that it is a prime.
The calculation went super slowly. Could someone here confirm that this result is correct?.
The result I got is 7693749334931393 ... 91713111753.
prime-numbers
edited 3 mins ago
Henrik Schumacher
50.4k469144
asked 4 hours ago
Toni SToni S
132
New contributor
Toni S is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
Using the primality test on this site, I found that the concatenation of the digit reversal of the first 548 odd primes in the reverse order is a prime!. It is only a 1998-digit prime, but it took more than an hour for the site's calculator to state that it is a prime.
The calculation went super slowly. Could someone here confirm that this result is correct?.
The result I got is 7693749334931393 ... 91713111753.
prime-numbers
prime-numbers
edited 3 mins ago
Henrik Schumacher
50.4k469144
asked 4 hours ago
Toni SToni S
132
New contributor
Toni S is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 3 mins ago
Henrik Schumacher
50.4k469144
asked 4 hours ago
Toni SToni S
132
New contributor
Toni S is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 3 mins ago
Henrik Schumacher
50.4k469144
edited 3 mins ago
Henrik Schumacher
50.4k469144
edited 3 mins ago
Henrik Schumacher
50.4k469144
50.4k469144
asked 4 hours ago
Toni SToni S
132
New contributor
Toni S is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 4 hours ago
Toni SToni S
132
asked 4 hours ago
Toni SToni S
132
132
New contributor
Toni S is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Toni S is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Toni S is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
$begingroup$
Are you asking how to check if a number is prime using Mathematica? If so, tryPrimeQ.
$endgroup$
– bobthechemist
4 hours ago
1
$begingroup$
Here's a free (fast) way to test this. It givesTruein under a second. It's just building off free Wolfram Cloud stuff so you can give that a check too if you need something else like this. It takes like half a second for the notebook to load, but after that you can do whatever with it.
$endgroup$
– b3m2a1
3 hours ago
$begingroup$
Welcome to Mathematica.SE. Are you sure you are posting on the right site? There is nothing in your question making it clear that it is concerned with Mathematica software.
$endgroup$
– m_goldberg
2 hours ago
add a comment |
1
$begingroup$
Are you asking how to check if a number is prime using Mathematica? If so, tryPrimeQ.
$endgroup$
– bobthechemist
4 hours ago
1
$begingroup$
Here's a free (fast) way to test this. It givesTruein under a second. It's just building off free Wolfram Cloud stuff so you can give that a check too if you need something else like this. It takes like half a second for the notebook to load, but after that you can do whatever with it.
$endgroup$
– b3m2a1
3 hours ago
$begingroup$
Welcome to Mathematica.SE. Are you sure you are posting on the right site? There is nothing in your question making it clear that it is concerned with Mathematica software.
$endgroup$
– m_goldberg
2 hours ago
1
1
$begingroup$
Are you asking how to check if a number is prime using Mathematica? If so, try
PrimeQ.$endgroup$
– bobthechemist
4 hours ago
$begingroup$
Are you asking how to check if a number is prime using Mathematica? If so, try
PrimeQ.$endgroup$
– bobthechemist
4 hours ago
1
1
$begingroup$
Here's a free (fast) way to test this. It gives
True in under a second. It's just building off free Wolfram Cloud stuff so you can give that a check too if you need something else like this. It takes like half a second for the notebook to load, but after that you can do whatever with it.$endgroup$
– b3m2a1
3 hours ago
$begingroup$
Here's a free (fast) way to test this. It gives
True in under a second. It's just building off free Wolfram Cloud stuff so you can give that a check too if you need something else like this. It takes like half a second for the notebook to load, but after that you can do whatever with it.$endgroup$
– b3m2a1
3 hours ago
$begingroup$
Welcome to Mathematica.SE. Are you sure you are posting on the right site? There is nothing in your question making it clear that it is concerned with Mathematica software.
$endgroup$
– m_goldberg
2 hours ago
$begingroup$
Welcome to Mathematica.SE. Are you sure you are posting on the right site? There is nothing in your question making it clear that it is concerned with Mathematica software.
$endgroup$
– m_goldberg
2 hours ago
add a comment |
2 Answers
2
active
oldest
votes
$begingroup$
You are right!!
Reverse /@ Table[IntegerDigits[Prime[i]], {i, 2, 549}] // Reverse //
Flatten // FromDigits // PrimeQ
True
7693749334931393929332939193719311937093988318837783368335831583748333
8332831283308379733973977396737673167393733373727391739073107379631963
7763376317639563346373631363326371633163706339533853185317539553755374
5314539353335392537253715311539943194396437643364316437543944333433143
7043193398333733173316339533743334331333923332339133313370331033992317
2395237523352315239223122371239023302319137813181396137613361373131213
9113901398033803970376031603940314037303320391031103100399921792969236
9275923592939272927192909230927982788297821682758215823482738233829182
3082108279721972987277727672357294721472137292729172317211727072996239
6298627862386277621762366295627562746233621262716290623952195297527552
1552945234529352135212523052774237427642954274421442734232427142114299
3239329832383218327732173275321532743214329332333211329032792239227822
1822372296227622152234229322732212223122702230229712161235123412141273
1213129212311211129902980278023802180296023602350293029202720271021102
3002999179913991789197913791159194913391139131917091109198819781778137
8117817681168174811381328111811081987178713871777195713571747114713371
3271127190719961796139619661766136617561736172611261916131619061706110
6179513851975117517651955135519451345113513251115199413941984178413841
1841174195413541154174419341334192417241324190419931183137317631163172
3112319131703130311031792119219821382197217721952194217321132192213221
7121312110213911781118111711361135111511921132117111901130117901390119
0178019601360116011501940193013301130112019101310190017991993897791797
6935974914973992991911970978838818877836895875835893892872832812811890
8797787377967167757157347937337727917907107196386776376166956356746346
1461369167163167061069953957857751759653657557451453251259053059941947
8497476436416475494434493433413412491490410479398338397337376395335394
3743733133713313113703392382182772172962362752152142932332922722322112
9917913911911819713717613617511519419317311317213119017013011017998389
73717761695357434147313923291713111753
answered 3 hours ago
Okkes DulgerciOkkes Dulgerci
4,3351816
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$begingroup$
AAHHHH..., I LOVE YOU MAN !!!!!
$endgroup$
– Toni S
3 hours ago
$begingroup$
I WILL REMEMBER YOUR NAME !!! : D
$endgroup$
– Toni S
3 hours ago
$begingroup$
Glad to help..!
$endgroup$
– Okkes Dulgerci
3 hours ago
add a comment |
$begingroup$
junk = Table[
FromDigits@Reverse@IntegerDigits[Prime[i]], {i, 2, 549}];
final = FromDigits[Flatten[IntegerDigits /@ junk]];
PrimeQ[final]
(*
False
*)
This takes $0.002238$ seconds on a Mac laptop.
answered 3 hours ago
David G. StorkDavid G. Stork
23.9k22152
$endgroup$
$begingroup$
Note that it is the first 548 odd primes, 3,5,7,11,13,.... and not the first 548 primes.
$endgroup$
– Toni S
3 hours ago
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@ToniS: That's why the iteration starts at $i = 2$ (and goes to $549$): BecausePrime[2] = 3. AndPrime[548] = 3947andPrime[549] = 3967.
$endgroup$
– David G. Stork
3 hours ago
$begingroup$
Damn it !! I hate this !
$endgroup$
– Toni S
3 hours ago
$begingroup$
Are you sure the first digit of this prime is 769374933493... ?
$endgroup$
– Toni S
3 hours ago
1
$begingroup$
Nope: $35711317191329213731434ldots 193919332939293139334937493$. Over and out. Good luck.
$endgroup$
– David G. Stork
3 hours ago
|
show 3 more comments
Your Answer
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
You are right!!
Reverse /@ Table[IntegerDigits[Prime[i]], {i, 2, 549}] // Reverse //
Flatten // FromDigits // PrimeQ
True
7693749334931393929332939193719311937093988318837783368335831583748333
8332831283308379733973977396737673167393733373727391739073107379631963
7763376317639563346373631363326371633163706339533853185317539553755374
5314539353335392537253715311539943194396437643364316437543944333433143
7043193398333733173316339533743334331333923332339133313370331033992317
2395237523352315239223122371239023302319137813181396137613361373131213
9113901398033803970376031603940314037303320391031103100399921792969236
9275923592939272927192909230927982788297821682758215823482738233829182
3082108279721972987277727672357294721472137292729172317211727072996239
6298627862386277621762366295627562746233621262716290623952195297527552
1552945234529352135212523052774237427642954274421442734232427142114299
3239329832383218327732173275321532743214329332333211329032792239227822
1822372296227622152234229322732212223122702230229712161235123412141273
1213129212311211129902980278023802180296023602350293029202720271021102
3002999179913991789197913791159194913391139131917091109198819781778137
8117817681168174811381328111811081987178713871777195713571747114713371
3271127190719961796139619661766136617561736172611261916131619061706110
6179513851975117517651955135519451345113513251115199413941984178413841
1841174195413541154174419341334192417241324190419931183137317631163172
3112319131703130311031792119219821382197217721952194217321132192213221
7121312110213911781118111711361135111511921132117111901130117901390119
0178019601360116011501940193013301130112019101310190017991993897791797
6935974914973992991911970978838818877836895875835893892872832812811890
8797787377967167757157347937337727917907107196386776376166956356746346
1461369167163167061069953957857751759653657557451453251259053059941947
8497476436416475494434493433413412491490410479398338397337376395335394
3743733133713313113703392382182772172962362752152142932332922722322112
9917913911911819713717613617511519419317311317213119017013011017998389
73717761695357434147313923291713111753
answered 3 hours ago
Okkes DulgerciOkkes Dulgerci
4,3351816
$endgroup$
$begingroup$
AAHHHH..., I LOVE YOU MAN !!!!!
$endgroup$
– Toni S
3 hours ago
$begingroup$
I WILL REMEMBER YOUR NAME !!! : D
$endgroup$
– Toni S
3 hours ago
$begingroup$
Glad to help..!
$endgroup$
– Okkes Dulgerci
3 hours ago
add a comment |
$begingroup$
You are right!!
Reverse /@ Table[IntegerDigits[Prime[i]], {i, 2, 549}] // Reverse //
Flatten // FromDigits // PrimeQ
True
7693749334931393929332939193719311937093988318837783368335831583748333
8332831283308379733973977396737673167393733373727391739073107379631963
7763376317639563346373631363326371633163706339533853185317539553755374
5314539353335392537253715311539943194396437643364316437543944333433143
7043193398333733173316339533743334331333923332339133313370331033992317
2395237523352315239223122371239023302319137813181396137613361373131213
9113901398033803970376031603940314037303320391031103100399921792969236
9275923592939272927192909230927982788297821682758215823482738233829182
3082108279721972987277727672357294721472137292729172317211727072996239
6298627862386277621762366295627562746233621262716290623952195297527552
1552945234529352135212523052774237427642954274421442734232427142114299
3239329832383218327732173275321532743214329332333211329032792239227822
1822372296227622152234229322732212223122702230229712161235123412141273
1213129212311211129902980278023802180296023602350293029202720271021102
3002999179913991789197913791159194913391139131917091109198819781778137
8117817681168174811381328111811081987178713871777195713571747114713371
3271127190719961796139619661766136617561736172611261916131619061706110
6179513851975117517651955135519451345113513251115199413941984178413841
1841174195413541154174419341334192417241324190419931183137317631163172
3112319131703130311031792119219821382197217721952194217321132192213221
7121312110213911781118111711361135111511921132117111901130117901390119
0178019601360116011501940193013301130112019101310190017991993897791797
6935974914973992991911970978838818877836895875835893892872832812811890
8797787377967167757157347937337727917907107196386776376166956356746346
1461369167163167061069953957857751759653657557451453251259053059941947
8497476436416475494434493433413412491490410479398338397337376395335394
3743733133713313113703392382182772172962362752152142932332922722322112
9917913911911819713717613617511519419317311317213119017013011017998389
73717761695357434147313923291713111753
answered 3 hours ago
Okkes DulgerciOkkes Dulgerci
4,3351816
$endgroup$
$begingroup$
AAHHHH..., I LOVE YOU MAN !!!!!
$endgroup$
– Toni S
3 hours ago
$begingroup$
I WILL REMEMBER YOUR NAME !!! : D
$endgroup$
– Toni S
3 hours ago
$begingroup$
Glad to help..!
$endgroup$
– Okkes Dulgerci
3 hours ago
add a comment |
$begingroup$
You are right!!
Reverse /@ Table[IntegerDigits[Prime[i]], {i, 2, 549}] // Reverse //
Flatten // FromDigits // PrimeQ
True
7693749334931393929332939193719311937093988318837783368335831583748333
8332831283308379733973977396737673167393733373727391739073107379631963
7763376317639563346373631363326371633163706339533853185317539553755374
5314539353335392537253715311539943194396437643364316437543944333433143
7043193398333733173316339533743334331333923332339133313370331033992317
2395237523352315239223122371239023302319137813181396137613361373131213
9113901398033803970376031603940314037303320391031103100399921792969236
9275923592939272927192909230927982788297821682758215823482738233829182
3082108279721972987277727672357294721472137292729172317211727072996239
6298627862386277621762366295627562746233621262716290623952195297527552
1552945234529352135212523052774237427642954274421442734232427142114299
3239329832383218327732173275321532743214329332333211329032792239227822
1822372296227622152234229322732212223122702230229712161235123412141273
1213129212311211129902980278023802180296023602350293029202720271021102
3002999179913991789197913791159194913391139131917091109198819781778137
8117817681168174811381328111811081987178713871777195713571747114713371
3271127190719961796139619661766136617561736172611261916131619061706110
6179513851975117517651955135519451345113513251115199413941984178413841
1841174195413541154174419341334192417241324190419931183137317631163172
3112319131703130311031792119219821382197217721952194217321132192213221
7121312110213911781118111711361135111511921132117111901130117901390119
0178019601360116011501940193013301130112019101310190017991993897791797
6935974914973992991911970978838818877836895875835893892872832812811890
8797787377967167757157347937337727917907107196386776376166956356746346
1461369167163167061069953957857751759653657557451453251259053059941947
8497476436416475494434493433413412491490410479398338397337376395335394
3743733133713313113703392382182772172962362752152142932332922722322112
9917913911911819713717613617511519419317311317213119017013011017998389
73717761695357434147313923291713111753
answered 3 hours ago
Okkes DulgerciOkkes Dulgerci
4,3351816
$endgroup$
You are right!!
Reverse /@ Table[IntegerDigits[Prime[i]], {i, 2, 549}] // Reverse //
Flatten // FromDigits // PrimeQ
True
7693749334931393929332939193719311937093988318837783368335831583748333
8332831283308379733973977396737673167393733373727391739073107379631963
7763376317639563346373631363326371633163706339533853185317539553755374
5314539353335392537253715311539943194396437643364316437543944333433143
7043193398333733173316339533743334331333923332339133313370331033992317
2395237523352315239223122371239023302319137813181396137613361373131213
9113901398033803970376031603940314037303320391031103100399921792969236
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73717761695357434147313923291713111753
answered 3 hours ago
Okkes DulgerciOkkes Dulgerci
4,3351816
answered 3 hours ago
Okkes DulgerciOkkes Dulgerci
4,3351816
answered 3 hours ago
Okkes DulgerciOkkes Dulgerci
4,3351816
answered 3 hours ago
Okkes DulgerciOkkes Dulgerci
4,3351816
4,3351816
$begingroup$
AAHHHH..., I LOVE YOU MAN !!!!!
$endgroup$
– Toni S
3 hours ago
$begingroup$
I WILL REMEMBER YOUR NAME !!! : D
$endgroup$
– Toni S
3 hours ago
$begingroup$
Glad to help..!
$endgroup$
– Okkes Dulgerci
3 hours ago
add a comment |
$begingroup$
AAHHHH..., I LOVE YOU MAN !!!!!
$endgroup$
– Toni S
3 hours ago
$begingroup$
I WILL REMEMBER YOUR NAME !!! : D
$endgroup$
– Toni S
3 hours ago
$begingroup$
Glad to help..!
$endgroup$
– Okkes Dulgerci
3 hours ago
$begingroup$
AAHHHH..., I LOVE YOU MAN !!!!!
$endgroup$
– Toni S
3 hours ago
$begingroup$
AAHHHH..., I LOVE YOU MAN !!!!!
$endgroup$
– Toni S
3 hours ago
$begingroup$
I WILL REMEMBER YOUR NAME !!! : D
$endgroup$
– Toni S
3 hours ago
$begingroup$
I WILL REMEMBER YOUR NAME !!! : D
$endgroup$
– Toni S
3 hours ago
$begingroup$
Glad to help..!
$endgroup$
– Okkes Dulgerci
3 hours ago
$begingroup$
Glad to help..!
$endgroup$
– Okkes Dulgerci
3 hours ago
add a comment |
$begingroup$
junk = Table[
FromDigits@Reverse@IntegerDigits[Prime[i]], {i, 2, 549}];
final = FromDigits[Flatten[IntegerDigits /@ junk]];
PrimeQ[final]
(*
False
*)
This takes $0.002238$ seconds on a Mac laptop.
answered 3 hours ago
David G. StorkDavid G. Stork
23.9k22152
$endgroup$
$begingroup$
Note that it is the first 548 odd primes, 3,5,7,11,13,.... and not the first 548 primes.
$endgroup$
– Toni S
3 hours ago
$begingroup$
@ToniS: That's why the iteration starts at $i = 2$ (and goes to $549$): BecausePrime[2] = 3. AndPrime[548] = 3947andPrime[549] = 3967.
$endgroup$
– David G. Stork
3 hours ago
$begingroup$
Damn it !! I hate this !
$endgroup$
– Toni S
3 hours ago
$begingroup$
Are you sure the first digit of this prime is 769374933493... ?
$endgroup$
– Toni S
3 hours ago
1
$begingroup$
Nope: $35711317191329213731434ldots 193919332939293139334937493$. Over and out. Good luck.
$endgroup$
– David G. Stork
3 hours ago
|
show 3 more comments
$begingroup$
junk = Table[
FromDigits@Reverse@IntegerDigits[Prime[i]], {i, 2, 549}];
final = FromDigits[Flatten[IntegerDigits /@ junk]];
PrimeQ[final]
(*
False
*)
This takes $0.002238$ seconds on a Mac laptop.
answered 3 hours ago
David G. StorkDavid G. Stork
23.9k22152
$endgroup$
$begingroup$
Note that it is the first 548 odd primes, 3,5,7,11,13,.... and not the first 548 primes.
$endgroup$
– Toni S
3 hours ago
$begingroup$
@ToniS: That's why the iteration starts at $i = 2$ (and goes to $549$): BecausePrime[2] = 3. AndPrime[548] = 3947andPrime[549] = 3967.
$endgroup$
– David G. Stork
3 hours ago
$begingroup$
Damn it !! I hate this !
$endgroup$
– Toni S
3 hours ago
$begingroup$
Are you sure the first digit of this prime is 769374933493... ?
$endgroup$
– Toni S
3 hours ago
1
$begingroup$
Nope: $35711317191329213731434ldots 193919332939293139334937493$. Over and out. Good luck.
$endgroup$
– David G. Stork
3 hours ago
|
show 3 more comments
$begingroup$
junk = Table[
FromDigits@Reverse@IntegerDigits[Prime[i]], {i, 2, 549}];
final = FromDigits[Flatten[IntegerDigits /@ junk]];
PrimeQ[final]
(*
False
*)
This takes $0.002238$ seconds on a Mac laptop.
answered 3 hours ago
David G. StorkDavid G. Stork
23.9k22152
$endgroup$
junk = Table[
FromDigits@Reverse@IntegerDigits[Prime[i]], {i, 2, 549}];
final = FromDigits[Flatten[IntegerDigits /@ junk]];
PrimeQ[final]
(*
False
*)
This takes $0.002238$ seconds on a Mac laptop.
answered 3 hours ago
David G. StorkDavid G. Stork
23.9k22152
answered 3 hours ago
David G. StorkDavid G. Stork
23.9k22152
answered 3 hours ago
David G. StorkDavid G. Stork
23.9k22152
answered 3 hours ago
David G. StorkDavid G. Stork
23.9k22152
23.9k22152
$begingroup$
Note that it is the first 548 odd primes, 3,5,7,11,13,.... and not the first 548 primes.
$endgroup$
– Toni S
3 hours ago
$begingroup$
@ToniS: That's why the iteration starts at $i = 2$ (and goes to $549$): BecausePrime[2] = 3. AndPrime[548] = 3947andPrime[549] = 3967.
$endgroup$
– David G. Stork
3 hours ago
$begingroup$
Damn it !! I hate this !
$endgroup$
– Toni S
3 hours ago
$begingroup$
Are you sure the first digit of this prime is 769374933493... ?
$endgroup$
– Toni S
3 hours ago
1
$begingroup$
Nope: $35711317191329213731434ldots 193919332939293139334937493$. Over and out. Good luck.
$endgroup$
– David G. Stork
3 hours ago
|
show 3 more comments
$begingroup$
Note that it is the first 548 odd primes, 3,5,7,11,13,.... and not the first 548 primes.
$endgroup$
– Toni S
3 hours ago
$begingroup$
@ToniS: That's why the iteration starts at $i = 2$ (and goes to $549$): BecausePrime[2] = 3. AndPrime[548] = 3947andPrime[549] = 3967.
$endgroup$
– David G. Stork
3 hours ago
$begingroup$
Damn it !! I hate this !
$endgroup$
– Toni S
3 hours ago
$begingroup$
Are you sure the first digit of this prime is 769374933493... ?
$endgroup$
– Toni S
3 hours ago
1
$begingroup$
Nope: $35711317191329213731434ldots 193919332939293139334937493$. Over and out. Good luck.
$endgroup$
– David G. Stork
3 hours ago
$begingroup$
Note that it is the first 548 odd primes, 3,5,7,11,13,.... and not the first 548 primes.
$endgroup$
– Toni S
3 hours ago
$begingroup$
Note that it is the first 548 odd primes, 3,5,7,11,13,.... and not the first 548 primes.
$endgroup$
– Toni S
3 hours ago
$begingroup$
@ToniS: That's why the iteration starts at $i = 2$ (and goes to $549$): Because
Prime[2] = 3. And Prime[548] = 3947 and Prime[549] = 3967.$endgroup$
– David G. Stork
3 hours ago
$begingroup$
@ToniS: That's why the iteration starts at $i = 2$ (and goes to $549$): Because
Prime[2] = 3. And Prime[548] = 3947 and Prime[549] = 3967.$endgroup$
– David G. Stork
3 hours ago
$begingroup$
Damn it !! I hate this !
$endgroup$
– Toni S
3 hours ago
$begingroup$
Damn it !! I hate this !
$endgroup$
– Toni S
3 hours ago
$begingroup$
Are you sure the first digit of this prime is 769374933493... ?
$endgroup$
– Toni S
3 hours ago
$begingroup$
Are you sure the first digit of this prime is 769374933493... ?
$endgroup$
– Toni S
3 hours ago
1
1
$begingroup$
Nope: $35711317191329213731434ldots 193919332939293139334937493$. Over and out. Good luck.
$endgroup$
– David G. Stork
3 hours ago
$begingroup$
Nope: $35711317191329213731434ldots 193919332939293139334937493$. Over and out. Good luck.
$endgroup$
– David G. Stork
3 hours ago
|
show 3 more comments
Toni S is a new contributor. Be nice, and check out our Code of Conduct.
Toni S is a new contributor. Be nice, and check out our Code of Conduct.
Toni S is a new contributor. Be nice, and check out our Code of Conduct.
Toni S is a new contributor. Be nice, and check out our Code of Conduct.
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$begingroup$
Are you asking how to check if a number is prime using Mathematica? If so, try
PrimeQ.$endgroup$
– bobthechemist
4 hours ago
1
$begingroup$
Here's a free (fast) way to test this. It gives
Truein under a second. It's just building off free Wolfram Cloud stuff so you can give that a check too if you need something else like this. It takes like half a second for the notebook to load, but after that you can do whatever with it.$endgroup$
– b3m2a1
3 hours ago
$begingroup$
Welcome to Mathematica.SE. Are you sure you are posting on the right site? There is nothing in your question making it clear that it is concerned with Mathematica software.
$endgroup$
– m_goldberg
2 hours ago