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
689863721Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3177781995849571572732168.12018-05-13 06:39:24
History
DateUserTypeResult
2018-05-13YxinityF
Factor: 317778199584957157273 / TF: 68-70
2016-09-28NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-08-14sasakiNF
no factor from 2^66 to 2^67
2014-02-23america64NF
no factor from 2^65 to 2^66