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Msieve

May 26, 2018

Fast factorization of big integers using MPQS and GNFS

Msieve is a library and utility for factoring large integers using the most powerful modern algorithms. It features a stable and very fast implementation of a self-initializing multiple polynomial quadratic sieve MPQS, plus a somewhat experimental general number field sieve GNFS implementation.

Primary design goals are speed, portability and ease of use. Msieve claims to be the fastest implementation for factoring general inputs between 40 and 100 decimal digits, but can handle larger input as well.

WWW http//www.boo.net/~jasonp/qs.html