Free WordPress Plugin: The factoring calculator finds all factors and factor pairs of positive and negative numbers. Factor calculator finds divisors of non-zero integers. www.calculator.io/factoring-calculator/

Integer Factorization Approaches with JavaScript

Factoring algorithms and research since 2003. Latex, c++, maple, pdf and ps files.

A collection of useful number theoretic functions. Contains several primality tests, and the ECM factoring algorithm as well.

DJB's batch GCD algorithm for fast factoring sequences of integers

factor project

01110110110010011011010011101001010101100000010001

Self made RSA and number factoring algorithm with O(N)

Shor's Algorithm? Kind of.

Factored 21 and 51 using two optimal techniques of Shor's Algorithm, requiring far fewer qubits than the standard approach.