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Old 2022-08-08, 09:11   #1
bayanne
 
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"Tony Gott"
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Default P+1 testing

Is there a posting specifically about this type of work?
If so can someone direct me there please, thanks
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Old 2022-08-08, 11:31   #2
sweety439
 
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Quote:
Originally Posted by bayanne View Post
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?
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Old 2022-08-08, 12:07   #3
bayanne
 
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Quote:
Originally Posted by sweety439 View Post
I do not know either of these.

In the list of work types:

P+1 Factoring
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Old 2022-08-08, 12:14   #4
ATH
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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
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Old 2022-08-08, 12:15   #5
sweety439
 
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Quote:
Originally Posted by bayanne View Post
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
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Old 2022-08-08, 12:53   #6
bayanne
 
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OK, but how do I run P+1 using mprime?
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Old 2022-08-08, 14:22   #7
Prime95
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Quote:
Originally Posted by bayanne View Post
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.
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Old 2022-08-08, 15:01   #8
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Quote:
Originally Posted by bayanne View Post
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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