RE: Mersenne: P-1 factorers

[Don Leclair]

Hi,

> Are there any programs available (preferably PC) for P-1
> factoring that work with arbitary numbers rather than
> only specific types (such as the Mersenne programs)?

If you are familiar with compiling and linking C program, you can use
Richard Crandall's large integer package which includes first stage
implementations of p-1 and ECM.  You can download it from his
Perfectly Scientific web site at http://www.perfsci.com/

Don Leclair
[EMAIL PROTECTED]