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
685791983Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5565500716210258049692168.92018-06-26 17:06:52
History
DateUserTypeResult
2018-06-26ConductorF
Factor: 556550071621025804969 / TF: 68-69
2016-12-09NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-08-04sasakiNF
no factor from 2^66 to 2^67
2014-02-14sasakiNF
no factor from 2^65 to 2^66