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
668617241Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5432639172748193672232168.92018-03-15 12:11:36
History
DateUserTypeResult
2018-03-15ConductorF
Factor: 543263917274819367223 / TF: 68-69
2017-02-05NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-05-17sasakiNF
no factor from 2^66 to 2^67
2013-01-08america64NF
no factor from 2^65 to 2^66
2011-10-09laleraNF
no factor from 2^64 to 2^65
2010-06-11Architects CubedNF
no factor from 2^63 to 2^64