>> If trial-factoring has been done up to 2^68... is it >> possible to skip testing ECM curves for factors up to 15 >> and/or 20 digits... and go straight to testing ECM curves >> for digits up to 25 digits???
> Personally, I would go straight in at the 25+ digits level. OTOH, if trial factoring has been done to 2^68 on a Mersenne number then the number is probably quite big (IIRC) so it will take a long time to run just a single curve with a big B1. Sander _________________________________________________________________________ Unsubscribe & list info -- http://www.ndatech.com/mersenne/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
