» Paul Jobling's NewPGen - Sieving program for various listed forms involving a power or primorial. Page has introduction and free downloads for Windows or Linux.
» Prime Number Spiral - Windows software for exploring the Prime Number (Ulam's) Spiral. Online purchase.
» Primo - Elliptic Curve Primality Proving program which has set monoprocessor ECPP records. Windows freeware by Marcel Martin.
» Yahoo Groups: Primeform - Discussion group for PrimeFormGW and prime numbers. Program can trial factor and probable prime test any number, and prove many forms. Free Windows and Linux downloads after joining group.
» Yves Gallot's Proth.exe - Program to prove large primes on the form k*2^n+/-1. Page has introduction and free Windows download.
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