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

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MnStatusDetails
678331831Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5388839741875880195592168.92018-05-22 15:31:38
History
DateUserTypeResult
2018-05-22ConductorF
Factor: 538883974187588019559 / TF: 68-69
2016-12-13NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-07-23sasakiNF
no factor from 2^66 to 2^67
2014-01-10sasakiNF
no factor from 2^65 to 2^66
2012-01-27Mr-PlonkNF
no factor from 2^64 to 2^65