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 Showing results 1 to 6 of 6 Search took 0.01 seconds. Search: Posts Made By: GP2
 Forum: Wagstaff PRP Search 2019-06-27, 15:06 Replies: 28 Views: 11,763 Posted By GP2 I'm not the author, but I'm looking at the source... I'm not the author, but I'm looking at the source code. The code special-cases each of the exponents 31, 61, 89,107, 127 for Mersenne, plus a bunch of specific Fermat exponents. Wagstaff shares the...
 Forum: Wagstaff PRP Search 2019-06-26, 13:37 Replies: 28 Views: 11,763 Posted By GP2 The Double Mersenne Prime Search... The Double Mersenne Prime Search (http://www.doublemersennes.org/download.php) uses a program called mmff.exe, which is derived from mfaktc.exe As you mentioned, with mfaktc.exe it suffices to set...
 Forum: Wagstaff PRP Search 2019-06-26, 11:26 Replies: 28 Views: 11,763 Posted By GP2 Yes. The smallest Wagstaff number that is not... Yes. The smallest Wagstaff number that is not fully factored has exponent 1063.
 Forum: Wagstaff PRP Search 2019-06-26, 11:20 Replies: 28 Views: 11,763 Posted By GP2 All Wagstaff factors are 2*k*p + 1 for some k,... All Wagstaff factors are 2*k*p + 1 for some k, just like with Mersenne. And k is small enough for those factors that you could quickly find them even with a dumb Python script.
 Forum: Wagstaff PRP Search 2019-06-26, 03:36 Replies: 28 Views: 11,763 Posted By GP2 W(W(31)) also has a factor. Here's what we have... W(W(31)) also has a factor. Here's what we have so far: 3 3 prime 5 11 prime 7 43 prime 11 683 ...
 Forum: Wagstaff PRP Search 2019-06-25, 23:15 Replies: 28 Views: 11,763 Posted By GP2 There are no double Wagstaff primes for p ≤ 23.... There are no double Wagstaff primes for p ≤ 23. All of these have known factors. For higher p I know of no PRP tests or even the most basic factoring attempts. 3 3 prime 5 11 ...
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