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
671515609Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
4983641310196964163592168.82018-04-01 23:10:02
5317630502417003417772168.82018-04-01 23:10:03
History
DateUserTypeResult
2018-04-01ConductorF
Factor: 531763050241700341777 / TF: 68-69
2018-04-01ConductorF
Factor: 498364131019696416359 / TF: 68-69
2017-01-23NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-07-06sasakiNF
no factor from 2^66 to 2^67
2013-04-19ramgeisNF
no factor from 2^65 to 2^66