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
686547857Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4029833762989726536472168.42018-06-30 12:51:17
History
DateUserTypeResult
2018-06-30ConductorF
Factor: 402983376298972653647 / TF: 68-69
2016-12-03NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-08-06sasakiNF
no factor from 2^66 to 2^67
2014-02-11sasakiNF
no factor from 2^65 to 2^66
2012-02-02sasaki3NF
no factor from 2^64 to 2^65
2010-07-16Architects CubedNF
no factor from 2^63 to 2^64