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 2021-03-10, 15:33 #1 JuanTutors     Mar 2004 22·33·5 Posts What am I certifying in this case? I was assigned 10619723 for certification work, but this exponent already has three known factors. Am I certifying the PRP test on the full exponent, or on one of its factors? And if I am certifying the PRP test on the full exponent, what is the purpose of this?
2021-03-10, 16:27   #2
Happy5214

"Alexander"
Nov 2008
The Alamo City

13018 Posts

Quote:
 Originally Posted by JuanTutors I was assigned 10619723 for certification work, but this exponent already has three known factors. Am I certifying the PRP test on the full exponent, or on one of its factors? And if I am certifying the PRP test on the full exponent, what is the purpose of this?
The PRP test was performed on the cofactor, what's left over when the three known prime factors are divided out of that Mersenne number, and you're certifying that PRP test. I guess in a way the cofactor itself is a factor, but don't get it confused with the factors you find with TF, P-1, and ECM.

Last fiddled with by Happy5214 on 2021-03-10 at 16:28

2021-03-10, 17:25   #3
Viliam Furik

"Viliam FurÃ­k"
Jul 2018
Martin, Slovakia

11608 Posts

Quote:
 Originally Posted by JuanTutors I was assigned 10619723 for certification work, but this exponent already has three known factors. Am I certifying the PRP test on the full exponent, or on one of its factors? And if I am certifying the PRP test on the full exponent, what is the purpose of this?
You are certifying a whole PRP test on the cofactor, which in size is almost the same as the whole number. Certification on these 10M exponents is very fast, compared to 100M exponents. You certify that the test was done without errors by running a few iterations of the test, not the whole test.

 2021-03-12, 07:56 #4 LaurV Romulan Interpreter     Jun 2011 Thailand 3·3,221 Posts Adding to what anteposters said, if you are not happy with CERT work, you can disable it in P95, from the workers menu.
2021-03-12, 13:54   #5
JuanTutors

Mar 2004

22·33·5 Posts

Quote:
 Originally Posted by LaurV Adding to what anteposters said, if you are not happy with CERT work, you can disable it in P95, from the workers menu.
Nah, it's just a few minutes. I just needed to check what that was.

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