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Old 2011-03-22, 21:27   #1
philmoore's Avatar
Sep 2002
Tracktown, U.S.A.

21358 Posts
Default New Fermat factors

I see on Wilfrid Keller's site: that two new factors of Fermat numbers have been discovered recently including a 49-digit factor of F17 by David Bessel that appears to have been discovered using ECM with prime95/mprime. The other factor, the second known of F42 is credited to Roman Maznichenko, and Keller credits Durman for the software, but Luigi says over at that it was discovered using Mark Rodenkirch's program GMP-Factor. Congratulations to everyone involved!
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