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
507981871Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
4289338048881940057212168.52017-06-27 10:39:46
6025428774665120020872169.02025-03-07 15:17:12
History
DateUserTypeResult
2025-03-07James HeinrichF
Factors: 428933804888194005721,602542877466512002087 / TF: 68-70
2017-06-27Alex_soldierF
Factor: 428933804888194005721 / TF: 68-69*
2016-05-14sasakiNF
no factor from 2^67 to 2^68
2014-12-29sasakiNF
no factor from 2^66 to 2^67
2014-09-20sasakiNF
no factor from 2^65 to 2^66
2011-12-26RichardNF
no factor from 2^64 to 2^65
2010-07-02Architects CubedNF
no factor from 2^63 to 2^64