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Old 2003-08-31, 08:22   #2
andi314's Avatar
Nov 2002

4A16 Posts

to Martin Schroeder, aka McBryce !! He was the first who found a factor of a composite mersenne number on my server at

The factor is
M( 9504 )C: 2776202386436268283691901876771457 (34 digits)
found with B1=250000 and
sigma= -176653509

Will Edgington has been informed so this will show up in the next release of lowM.txt. The remaining 714 digit composite is now available in the ecm server. More helpers are welcome - smh has put together the following to make it easy to join:

Originally Posted by smh
I've put a zipfile (~800K) with the ecmclient and ecm.exe for various processors online here

Before you run ecmclient, put the right ecm.exe in the same folder and set the parameters in ecmclient.cfg
if you need any help please contact me at

So now i'm interessted who will be the next one, who finds a factor of M(X) or P(X)..

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