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
683484223Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4280720359098738533532168.52018-06-15 15:25:42
History
DateUserTypeResult
2018-06-15ConductorF
Factor: 428072035909873853353 / TF: 68-69
2016-11-04sasakiNF
no factor from 2^67 to 2^68
2014-07-31sasakiNF
no factor from 2^66 to 2^67
2014-02-23america64NF
no factor from 2^65 to 2^66
2012-01-31gLaussNF
no factor from 2^64 to 2^65
2010-07-08Architects CubedNF
no factor from 2^63 to 2^64