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Old 2004-10-31, 02:13   #1
Sep 2002

2×131 Posts
Default New factors on F12 or bug

I started using Fermatbeta4.4.exe from Leonid Durman on F12 and it found two unreported factors so my first assumption was that there's a bug in the beta version. So I downloaded Fermat.exe and ran it again with same results. It find 182126139*2^14+1 and 446369595*2^14+1 both to be factors of F12
Can anyone run tests on these with others software


Last fiddled with by jocelynl on 2004-10-31 at 02:14
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Old 2004-10-31, 02:33   #2
rogue's Avatar
Apr 2003
Between here and the

631310 Posts

Sorry, but

182126139*2^14+1 = (397*2^16+1)*(7*2^14+1)
446369595*2^14+1 = (973*2^16+1)*(7*2^14+1)
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Old 2004-10-31, 02:55   #3
Sep 2002

4068 Posts

So I guess the program is ok but reports composite factors as well.
I'll be carefull next time.

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