FLINT: Fast Library for Number Theory

What is FLINT ? · Applications & benchmarks · News · Documentation · Downloads · Development · Authors and credits · Links At its core, FLINT provides arithmetic in standard rings such as the integers, rationals, algebraic, real, complex and p-adic numbers, finite fields, and number fields. It also provides polynomials (univariate and multivariate), power series, and matrices. FLINT

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see http://mathoverflow.net/questions/114018/fastest-way-to-factor-integers-260

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