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Forum: No Prime Left Behind 2011-09-23, 01:10
Replies: 12
Views: 10,489
Posted By firejuggler
n checked upto 200k, still no new prime FFT...

n checked upto 200k, still no new prime

FFT @20k, each test take 70 second, time to sieve a bit further.
Forum: No Prime Left Behind 2011-09-20, 22:18
Replies: 12
Views: 10,489
Posted By firejuggler
and since k==2 mod 3 there won't be twin prime

and since k==2 mod 3 there won't be twin prime
Forum: No Prime Left Behind 2011-09-20, 21:30
Replies: 12
Views: 10,489
Posted By firejuggler
I also checked the counterpart of every +1 prime....

I also checked the counterpart of every +1 prime.
No -1 is prime
Forum: No Prime Left Behind 2011-09-20, 11:39
Replies: 12
Views: 10,489
Posted By firejuggler
n tested up to 100k, no further prime. LLR test...

n tested up to 100k, no further prime.
LLR test take around 15 seconds (up to 18) each at 100k
Forum: No Prime Left Behind 2011-09-20, 08:40
Replies: 12
Views: 10,489
Posted By firejuggler
ah thanks. it seems that none of them divide ....

ah thanks.
it seems that none of them divide .

43112609*2^79751+1 is prime! Time : 7.363 sec. 24016 digits
Forum: No Prime Left Behind 2011-09-20, 06:12
Replies: 12
Views: 10,489
Posted By firejuggler
I don't know if any of those divide any F or...

I don't know if any of those divide any F or GF..and didn't find the tools to check
Forum: No Prime Left Behind 2011-09-20, 04:56
Replies: 12
Views: 10,489
Posted By firejuggler
43112609*2^63 + 1 is prime! (a = 3) [27 digits] ...

43112609*2^63 + 1 is prime! (a = 3) [27 digits]

43112609*2^63 + 1 is prime! (verification : a = 5) [27 digits]

43112609*2^83 + 1 is prime! (a = 3) [33 digits]

43112609*2^83 + 1 is prime!...
Forum: No Prime Left Behind 2011-09-20, 04:40
Replies: 12
Views: 10,489
Posted By firejuggler
k=43112609

oh well, wanna try this k, just for fun
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