Marin Mersenne 2^P-1
Username
Password
Forgot password?
White
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
256577323Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
6212895366428525099772169.12019-04-24 18:53:53
History
DateUserTypeResult
2025-03-20James HeinrichF
Factor: 621289536642852509977 / TF: 69-70
2019-04-24Alexander TsupkoF
Factor: 621289536642852509977 / TF: 69-70
2018-07-02daniel horacioNF
no factor from 2^68 to 2^69
2016-05-05XZTNF
no factor from 2^67 to 2^68
2015-12-16ConductorNF
no factor from 2^66 to 2^67
2013-11-14tscNF
no factor from 2^65 to 2^66
2011-08-10RichardNF
no factor from 2^64 to 2^65
2010-03-09lindedNF
no factor from 2^63 to 2^64
2010-03-09lindedNF
no factor from 2^62 to 2^63