I don't think the TF limits were ever lowered; it seems they may have been raised, as I have gotten several 8.3M DC exponents which first had to be factored from 63 to 64 and THEN the P-1. It occurred to me that it might be more efficient to do it the other way around, but factoring from 63 to 64 goes relative quickly. If it were a question of factoring from 65 to 66 versus P-1 first, then I think the P-1 wins easily.
Steve -----Original Message----- From: Daran <[EMAIL PROTECTED]> <snip> >When the TF limits were originally decided, it was assumed that a sucessful >TF would save 1.03 or 2.03 LLs. I can't remember whether George has ever >said whether they have been lowered to take the P-1 step into account. > >Daran G. _________________________________________________________________________ Unsubscribe & list info -- http://www.ndatech.com/mersenne/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
