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
689920417Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3281195898277998403132168.22018-05-12 14:26:53
History
DateUserTypeResult
2018-05-12YxinityF
Factor: 328119589827799840313 / TF: 68-70
2016-08-20el groccoNF
no factor from 2^67 to 2^68
2014-08-10sasakiNF
no factor from 2^66 to 2^67
2014-02-23america64NF
no factor from 2^65 to 2^66