PPMPXE.DOC for PPMPX3.3 (English Manual) PPMPX is a prime factorization program for the numbers of over 40 digit(especially for over 80 digit). The method is PPMPQS (=the double large primes procedure variation of the multiple polynomial quadratic sieve). * Notice PPMPQS is the last resort to factor big integers. It's very wasteful to use PPMPQS from the first stage. Try to remove the small factors beforehand. At least use rho method(=Monte Carlo method) for a few hours.