Great Internet Mersenne Prime Search

Volunteer project using software to search for Mersenne prime numbers

largest prime number that is currently known

Founder of the Great Internet Mersenne Prime search

Prime95, also distributed as the command-line utility mprime for FreeBSD, Linux, and MacOS is a freeware application written by George Woltman. It is the official client of the Great Internet Mersenne Prime Search (GIMPS), a volunteer computing project dedicated to searching for Mersenne primes. It is also used in overclocking to test for system stability.