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 2016-03-16, 04:29 #12 Dubslow Basketry That Evening!     "Bunslow the Bold" Jun 2011 40
2016-03-16, 04:40   #13
axn

Jun 2003

2·2,719 Posts

Quote:
As long as their activities are confined to specific sub-fora and/or specific threads, I am happy to leave them be. We're not obliged to spend time on them in anyway. Ignore list is probably the best option in context.

2016-03-16, 04:44   #14
paulunderwood

Sep 2002
Database er0rr

106178 Posts

Quote:
 Originally Posted by PawnProver44 Except for 1, there is always a prime p such that 2^p-1 is prime between 10^n and 1.5*10^n.
There is no known proof that there are an infinity of Mersenne primes.

Also the gap between M37 and M38 exponents is greater than "1.5"

Sorry for not complying with...

 2016-03-16, 04:48 #15 PawnProver44     "NOT A TROLL" Mar 2016 California 197 Posts The Few exponents I am referring to are 13, 107, 127, 1279, 11213, 110503, 132049, 1257787, 1398269, 13466917....... The pattern probably continues for 9 digits as well, so there is probably a mersenne prime between 2^99999999 and 2^149999999
2016-03-16, 04:55   #16
Dubslow

"Bunslow the Bold"
Jun 2011
40<A<43 -89<O<-88

3·29·83 Posts

Quote:
 Originally Posted by axn As long as their activities are confined to specific sub-fora and/or specific threads, I am happy to leave them be. We're not obliged to spend time on them in anyway. Ignore list is probably the best option in context.
Congratulations PawnProver44, you are the first ever member of my ignore list.

2016-03-16, 05:44   #17
PawnProver44

"NOT A TROLL"
Mar 2016
California

19710 Posts

Quote:
 Originally Posted by Dubslow Congratulations PawnProver44, you are the first ever member of my ignore list.
I am not a troll! please.

Last fiddled with by PawnProver44 on 2016-03-16 at 05:45

 2016-03-16, 15:16 #18 ET_ Banned     "Luigi" Aug 2002 Team Italia 113718 Posts Code: Trial-factoring M71324207525210468041 in [2^1, 2^105-1] M71324207525210468041 has 0 factors in [2^1, 2^105-1]. Anybody cares to go further?
 2016-03-16, 18:58 #19 PawnProver44     "NOT A TROLL" Mar 2016 California 197 Posts Trial factoring may not be the best idea here.
2016-03-16, 19:07   #20
science_man_88

"Forget I exist"
Jul 2009
Dartmouth NS

20E216 Posts

Quote:
 Originally Posted by PawnProver44 Trial factoring may not be the best idea here.
well we know LL will likely take longer etc. at some point at which case a primality ( typically done with the LL test for Mersennes) or factoring algorithm of some sort may be the way to find it composite.

 2016-03-16, 19:11 #21 PawnProver44     "NOT A TROLL" Mar 2016 California 197 Posts right... There is also the N+1 primality test to apply.
2016-03-17, 02:16   #22
Batalov

"Serge"
Mar 2008
Phi(4,2^7658614+1)/2

3×7×479 Posts

Quote:
 Originally Posted by PawnProver44 right... There is also the N+1 primality test to apply.
Talk is cheap. Do it. Or STFU, at last.

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