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
698179721Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4286835408498372019212168.52017-06-18 18:10:54
History
DateUserTypeResult
2022-08-15LordJuliusNF
no factor from 2^62 to 2^63
2022-08-15J.R. AllenNF
no factor from 2^62 to 2^63
2017-06-18ConductorF
Factor: 428683540849837201921 / TF: 68-69
2014-10-13sasakiNF
no factor from 2^66 to 2^68
2013-10-02sasakiNF
no factor from 2^65 to 2^66
2012-01-24laleraNF
no factor from 2^64 to 2^65
2010-06-25Architects CubedNF
no factor from 2^63 to 2^64