Thursday 6 December 2007

M+2 progress

A bit of news from the Mersenneplustwo project:
As hoped for, getting Lenny the new MacBook going on those mid-range M+2's with mprime (ie by ECM) recently yielded a 21-digit factor from (M+2)1257787:
http://bearnol.is-a-geek.com/Mersenneplustwo/Mersenneplustwo.html
Thanks once again to George Woltman, for his cool software!
http://www.mersenne.org/freesoft.htm
This is the second new factor found this year (both by mprime)...

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