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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996
Last updated: April 3, 2008 by Ernst Mayer
"Share and Enjoy" — The Amdahl 6 motto

Mersenne Prime Freeware

The list of software on the Mersenne Wiki may be more complete and up-to-date than this page.


Software for x86-style processors (Intel, AMD)

Go to the main download page. George Woltman's programs are the fastest on Intel and AMD chips running Windows and Linux.


Software for non-x86 processors

Currently the best programs for non-x86 CPUs are the following: Users should pick whichever gives the best performance on their hardware setup.

Other Software

(Note that some of these links may be dead, and much of the software is strictly of historical interest.)

Libraries & Developer-oriented links

Thanks go to...