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
687002831Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3958913141676838875192168.42017-09-16 10:58:02
History
DateUserTypeResult
2025-03-06James HeinrichF
Factor: 395891314167683887519 / TF: 68-70
2017-09-16Alex_soldierF
Factor: 395891314167683887519 / TF: 68-69*
2016-11-30NoPolarBearsHereNF
no factor from 2^67 to 2^68
2016-11-29ConductorNF
no factor from 2^67 to 2^68
2014-08-11sasakiNF
no factor from 2^66 to 2^67
2014-02-23america64NF
no factor from 2^65 to 2^66
2012-02-02HBendtzNF
no factor from 2^64 to 2^65
2010-07-16Architects CubedNF
no factor from 2^63 to 2^64