Suppanika's Elliptic Curve Factoring  C++ -- needs Bignum library
Kimball Martin's Elliptic Curve Factoring  needs Lenstra's LIP package..
Critcher's version of Pollard's method (C++ ..needs Bignum library)
An implementation of Pollard's p - 1 method.revised 04/11/03 ..uses bignum.c
..bignum.h
..bignum.c
..internal.h
Brian McEntire's implementation of Pollard's Rho C++ ..needs Bignum library
A Java implementation of Pollard's Rho
...ConsoleReader.java

-------------------------------------------------------------------- Links to:
Paul's factoring method Paul Herman's site
another factoring method ..XIAO gang
another factoring method alpertron.com.ar (Dario Alpern)
factoring multiplication integer and rational arithmetic c/c++ library (MIRACL)
Integer Factorization source code quadratic sieve method - works on Windows, Unix
material on factoring includes factor.exe
number field sieve ***