Re: Mersenne: Factoring beyond ECM
LiDIA is a free package for long number arithmetic. It includes a demo-program for factoring numbers with trial factoring, ECM and MPQS successive. See here: http://www.informatik.tu-darmstadt.de/TI/LiDIA/Welcome.html regards Martin -Ursprüngliche Nachricht- Von: Foghorn Leghorn [EMAIL PROTECTED] An: [EMAIL PROTECTED] Gesendet: Samstag, 22. Januar 2000 23:24 Betreff: Mersenne: Factoring beyond ECM I'm interested in trying to factor composite numbers with 100 to 200 digits. ECM becomes impractical for numbers without any factors below 50 digits or so. I have heard of algorithms such as MPQS which are used to tackle larger numbers. Are there any (preferably free) implementations of this method (or another) that would be feasible to run on a home PC or Unix workstations? Foghorn Leghorn [EMAIL PROTECTED] _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Mersenne: Factoring beyond ECM
I'm interested in trying to factor composite numbers with 100 to 200 digits. ECM becomes impractical for numbers without any factors below 50 digits or so. I have heard of algorithms such as MPQS which are used to tackle larger numbers. Are there any (preferably free) implementations of this method (or another) that would be feasible to run on a home PC or Unix workstations? Foghorn Leghorn [EMAIL PROTECTED] _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: Factoring beyond ECM
On Sat, 22 Jan 2000, Foghorn Leghorn wrote: I'm interested in trying to factor composite numbers with 100 to 200 digits. ECM becomes impractical for numbers without any factors below 50 digits or so. I have heard of algorithms such as MPQS which are used to tackle larger numbers. Are there any (preferably free) implementations of this method (or another) that would be feasible to run on a home PC or Unix workstations? MPQS is ok for numbers up to about 100 digits, at which time NFS takes over. Have a look at Conrad Curry's NFSNET, http://orca.st.usm.edu/~cwcurry/nfs/nfs.html Foghorn Leghorn [EMAIL PROTECTED] -- Henrik Olsen, Dawn Solutions I/S URL=http://www.iaeste.dk/~henrik/ Thomas Daggert to Lucifer: I have my soul, and I have my faith. What do you have... angel? The Prophecy _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: Mersenne: Factoring beyond ECM
On Sun, 23 Jan 2000 02:06:26 +0100 (CET), you wrote: MPQS is ok for numbers up to about 100 digits, at which time NFS takes over. Is there a good implementation of this available online? Have a look at Conrad Curry's NFSNET, http://orca.st.usm.edu/~cwcurry/nfs/nfs.html Foghorn Leghorn [EMAIL PROTECTED] _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
