Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
688772989Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4017444281974420421212168.42018-07-10 22:06:20
History
DateUserTypeResult
2018-07-10ConductorF
Factor: 401744428197442042121 / TF: 68-69
2016-10-15NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-08-10sasakiNF
no factor from 2^66 to 2^67
2014-02-22america64NF
no factor from 2^65 to 2^66
2012-02-03tscNF
no factor from 2^64 to 2^65
2010-07-20Architects CubedNF
no factor from 2^63 to 2^64