That record didn't last long - only 11 days! Congratulations to Alex
Kruppa for his new 47 digit factor found of the 1835th Fibonacci number
by P-1 with GMP-ECM. Details at:
http://www.loria.fr/~zimmerma/records/Pminus1.html
It says that the B1 and B2 limits listed there are not necessarily the
ago!
Good luck, anyone who wants to try this.
Phil Moore
_
Unsubscribe list info -- http://www.ndatech.com/mersenne/signup.htm
Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
, on a number as large as M8388608, I would recommend allocating
64Mbytes of memory, or even more, as more memory will definitely speed up stage 2
processing. It has been over 3 years since a Fermat factor has been discovered by
ECM, so it would be nice to end this drought!
Phil Moore
M( 32768 )C: 3
: 61641347592475860688686002670152525762503468748858717047
M( 262143 )C:
144780974187086260903935034761413745643636578290924150417
M( 262143 )C:
20712014126148022558481993313919624102421323341432158275969
M( 262143 )C:
2537599745025519134156761164267591913521835535529224725592538658153
Phil Moore
Steve Harris claimed that M89 is not prime, but it is! So his
conjecture about being able to eliminate a few Mersenne candidates
because the exponent is a factor of a non-prime Mersenne number won't
work.
Phil Moore
