Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
222731207Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5381871175614834612312168.92015-11-01 08:55:25
History
DateUserTypeResult
2015-11-01demfloroF
Factor: 538187117561483461231 / TF: 68-69
2015-11-01demfloroNF
no factor from 2^66 to 2^68
2013-08-28tscNF
no factor from 2^65 to 2^66
2011-06-09Jud McCranieNF
no factor from 2^64 to 2^65
2010-05-18Architects CubedNF
no factor from 2^63 to 2^64