mersenneforum.org P+1 testing
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 2022-08-08, 09:11 #1 bayanne     "Tony Gott" Aug 2002 Yell, Shetland, UK 5458 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

3×29×41 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

3·7·17 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 17×197 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

1101111011112 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 1011001012 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

5×7×227 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

6,659 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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