Mersenne: Desperately Seeking Faster Iron

2000-06-16 Thread Stefan Struiker
TeamG: With first-time L-L checking sliding toward a lunar month on an "old" 1GHz Athlon, we wonder how the Willamette and Itanium might further The Cause. Anyone have guessimates on the numbers for these two, say at 1GHz? Who, Me In A Hurry? Stefanovic

Mersenne: Factoring

2000-06-16 Thread Jim Howell
[Wed 14 Jun 2000, Paul Leyland writes] Today I found this number 3756482676803749223044867243823 with ECM andB1=10,000. It has two factors, each of 16 digits, which could *not* havebeen found by trial division in any reasonable time. - I use a program called "factor.exe", which

Mersenne: Pointers on farming

2000-06-16 Thread Nathan Russell
Hi all, In order to learn hardware before leaving for college, I have taken a full-time job at a local computer recycling place. Since I will be attending college on a rather nice scholarship, I will have more money than I am likely to need in the immediate future; through my work, I will

Re: Mersenne: Desperately Seeking Faster Iron

2000-06-16 Thread Eric Hahn
Stefan Struiker wrote: With first-time L-L checking sliding toward a lunar month on an "old" 1GHz Athlon, we wonder how the Willamette and Itanium might further The Cause. Anyone have guessimates on the numbers for these two, say at 1GHz? I'd guessimate about 17.5-18 days for an exponent around

Mersenne: Re: Factoring

2000-06-16 Thread Steinar H. Gunderson
On Fri, Jun 16, 2000 at 01:40:26AM -0700, Jim Howell wrote: This program runs on Windows, and can be downloaded from Chris Caldwell's main page, at: Just wanted to add that there is a Linux version as well -- I'd guess it's available at the same place. It didn't factor your number using P-1,

Mersenne: Factoring with ECM

2000-06-16 Thread Yann Forget
Hi, Could you explain this to me ? I am factoring Fermat numbers with ECM. Is this relevant in this case ? Thanks in advance, Yann Paul Leyland said: As long as the coefficients of the curve and the starting point are recorded, we can re-run exactly the same computation, with the small primes