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
667708243Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5290662095316094972072168.82018-03-11 13:35:28
History
DateUserTypeResult
2018-03-11ConductorF
Factor: 529066209531609497207 / TF: 68-69
2017-02-14sasakiNF
no factor from 2^67 to 2^68
2014-05-14sasakiNF
no factor from 2^66 to 2^67
2013-01-07america64NF
no factor from 2^65 to 2^66
2011-10-12laleraNF
no factor from 2^64 to 2^65
2010-06-11Architects CubedNF
no factor from 2^63 to 2^64