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

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MnStatusDetails
666756187Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
3983193487000705954812168.42018-03-06 21:06:12
4431100702370295561132168.62018-03-06 21:06:12
History
DateUserTypeResult
2018-03-06ConductorF
Factor: 443110070237029556113 / TF: 68-69
2018-03-06ConductorF
Factor: 398319348700070595481 / TF: 68-69
2017-02-14sasakiNF
no factor from 2^67 to 2^68
2014-05-08sasakiNF
no factor from 2^66 to 2^67
2010-03-10Architects CubedNF
no factor from 2^65 to 2^66
2010-03-10Architects CubedNF
no factor from 2^64 to 2^65