Choose Exponents to Test!
August/September 2008: New Mersenne Primes!

This page lets you choose an exponent to run a primality tests on.

If you are very lucky, you could be the one to find a world record prime number! However, these exponents take quite a while to test. A 2 GHz Pentium 4 computer requires 44 days to test a single exponent! See the benchmarks page for an estimate of how long it will take to test an exponent on your machine. Slower machines should choose double-checking work.

We are now testing the v5 server's manual assignments and results reporting web pages. Follow these steps:

• Create a v5 user account. Go here.
• Get one or more exponents to test. Go here.
• Optionally extend the expiration date. Go here.
• Report the results. Go here.

Last updated: July 16, 2008