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

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MnStatusDetails
667122601Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4183153959161193289672168.52018-03-08 16:28:09
History
DateUserTypeResult
2018-03-08ConductorF
Factor: 418315395916119328967 / TF: 68-69
2017-02-13sasakiNF
no factor from 2^67 to 2^68
2014-05-06sasakiNF
no factor from 2^66 to 2^67
2013-04-16ramgeisNF
no factor from 2^65 to 2^66
2011-10-27laleraNF
no factor from 2^64 to 2^65
2010-06-04Architects CubedNF
no factor from 2^63 to 2^64