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Old 2006-01-22, 19:47   #8
alpertron's Avatar
Aug 2002
Buenos Aires, Argentina

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Originally Posted by jocelynl
I never do stage 2 as it messes stage 1 save files. I keep my files as it continues to higher level from where it leftoff.
Please notice that in general the factor is found in step 2. You can read how the p-1 works at MersenneWiki.
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