mersenneforum.org P+1 testing
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 2022-08-08, 09:11 #1 bayanne     "Tony Gott" Aug 2002 Yell, Shetland, UK 359 Posts P+1 testing Is there a posting specifically about this type of work? If so can someone direct me there please, thanks
2022-08-08, 11:31   #2
sweety439

"99(4^34019)99 palind"
Nov 2016
(P^81993)SZ base 36

3,643 Posts

Quote:
 Originally Posted by bayanne Is there a posting specifically about this type of work? If so can someone direct me there please, thanks
Do you mean N+1 primality proving method or P+1 integer factorization method?

2022-08-08, 12:07   #3
bayanne

"Tony Gott"
Aug 2002
Yell, Shetland, UK

16716 Posts

Quote:
 Originally Posted by sweety439
I do not know either of these.

In the list of work types:

P+1 Factoring
Attached Thumbnails

 2022-08-08, 12:14 #4 ATH Einyen     Dec 2003 Denmark 1101010101012 Posts Here are some discussion and explanations of P+1: https://www.mersenneforum.org/showthread.php?t=26700 and in the 30.4/30.5/30.6 thread from post #150 and onwards when the P+1 feature was released in version 30.6: https://www.mersenneforum.org/showthread.php?t=26376
2022-08-08, 12:15   #5
sweety439

"99(4^34019)99 palind"
Nov 2016
(P^81993)SZ base 36

1110001110112 Posts

Quote:
 Originally Posted by bayanne I do not know either of these. In the list of work types: P+1 Factoring
This is indeed the P+1 integer factorization method, click the link in my post #2 to see what is this

 2022-08-08, 12:53 #6 bayanne     "Tony Gott" Aug 2002 Yell, Shetland, UK 359 Posts OK, but how do I run P+1 using mprime?
2022-08-08, 14:22   #7
Prime95
P90 years forever!

Aug 2002
Yeehaw, FL

22×43×47 Posts

Quote:
 Originally Posted by bayanne OK, but how do I run P+1 using mprime?
Not recommended right now. I'd use ECM and version 30.9. Someday I may get around to polynomial stage 2 for P+1 factoring.

2022-08-08, 15:01   #8
kriesel

"TF79LL86GIMPS96gpu17"
Mar 2017
US midwest

156758 Posts

Quote:
 Originally Posted by bayanne OK, but how do I run P+1 using mprime?
For background and perhaps starting the learning curve before P+1 is perhaps improved someday, there is https://mersenneforum.org/showthread.php?t=26750 and bits of https://mersenneforum.org/showthread.php?t=24607. P+1 is not a part of the usual progression of a prime exponent while searching for new Mersenne primes, so is neither automatically assigned, nor manually reserved at https://www.mersenne.org/manual_assignment/. So, worktodo entries must be constructed by the user AFAIK. See also the "New features in Version 30.6 of prime95.exe" section in mprime's whatsnew.txt distributed with the program.

Last fiddled with by kriesel on 2022-08-08 at 15:08

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