Thread: New factors?
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Old 2004-10-24, 21:37   #4
ET_'s Avatar
Aug 2002
Team Italia

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Originally Posted by Yogi
Okay, thanks about that one. I downloaded the files, decomp'd them and removed all factors from my database - below 79,3M, to be exact. But I have still 21 exponents beyond this which are not on the 79,3M+ list.

6,268,906,931,703,001 divides M79,300,051
3,166,935,531,542,801 divides M79,301,063

Don't tell me they are known and on another list. And yet another question: I've read posts about the long mersenne hunt, but only seen exponent ranges up to 500,000,000. What about the exponents beyond that limit? I know they can't be LL'ed (today), but do they interest you? If so, here's another (I hope still unknown) factor:

522,625,626,312,906,367 divides M535,326,271

And now tell me what to do with the other factors. Shall I post them here or send them directly to Mr. Woltman?
Sure you can post here to check them... Anyway, Will Edgington has a monstruous database holding all known factors of Mersenne numbers at l

You will also be happy to know that there are different distributed projects that work on Mersenne numbers above 79.2M:
Billion digits project at
One hundred million digits project in the Lone Mersenne Hunters thread, LMH>79.2 subthread (ask Uncwilly). Both run on a simple factorization progarm written by me

Also, I'd like to have a copy of your program to test it against mine. Maybe two heads think better than one, and we may help each other to optimize the code.


Last fiddled with by ET_ on 2004-10-24 at 21:38
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