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 Showing results 1 to 7 of 7 Search took 0.01 seconds. Search: Posts Made By: Viliam Furik
 Forum: Viliam Furik 2021-04-11, 16:06 Replies: 14 Views: 2,135 Posted By Viliam Furik Update I have been trying to find something and came across the Wikipedia page for the LL test, where it says, that the sign of the S(p-3) is (-1)(p-1)/2 (except for p = 5), for starting value of 2/3, which...
 Forum: Viliam Furik 2021-03-22, 17:18 Replies: 14 Views: 2,135 Posted By Viliam Furik The pattern you observed is fairly trivial I... The pattern you observed is fairly trivial I would say. If the prime exponent you're testing modulo p is itself a Mersenne prime, then you are testing the Mersenne prime with a smaller exponent. For...
 Forum: Viliam Furik 2021-03-22, 17:12 Replies: 14 Views: 2,135 Posted By Viliam Furik :jokedrum: Good one. :D :jokedrum: Good one. :D
 Forum: Viliam Furik 2021-03-22, 14:41 Replies: 14 Views: 2,135 Posted By Viliam Furik I think you confuse yourself with small and big... I think you confuse yourself with small and big p/P. S(P-2) is of no use to anyone, because P = 2^p-1. 2^P-1 is a pretty big number... Could you please recalculate and rewrite? I think it's...
 Forum: Viliam Furik 2021-03-22, 00:30 Replies: 14 Views: 2,135 Posted By Viliam Furik What I want is to know whether there is some rule... What I want is to know whether there is some rule for the value of X mod p. If we knew what would the remainder of X modulo p have to be assuming Mp is prime, then this would allow testing Mersenne...
 Forum: Viliam Furik 2021-03-21, 15:53 Replies: 14 Views: 2,135 Posted By Viliam Furik I agree it was not stated correctly. So let me... I agree it was not stated correctly. So let me correct myself: S(p-2) is congruent to X (mod p) In the case of p = 5, X is congruent to 4 (mod p), which holds, because S(p-2) is also congruent...
 Forum: Viliam Furik 2021-03-21, 15:06 Replies: 14 Views: 2,135 Posted By Viliam Furik Maybe useless but still interesting thing about LL sequence terms I was thinking about testing Mersenne numbers, not modulo Mp but modulo p. I realized that since Mp is prime if and only if S(p-2) in LL sequence is 0 (mod Mp), then we know the S(p-2) = X * Mp,...
 Showing results 1 to 7 of 7

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