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Old 2003-07-11, 14:23   #1
Sep 2002

10616 Posts
Default How does the trial factoring work with 15K*2^n-1

is there a special form for factors in 15K*2^n-1 like the one in 2^p-1

(2kp+1) | 2^p-1

And is there properties like 1 or 7 mod 8?

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