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
688499443Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4398167141586705752892168.62018-07-10 13:29:37
History
DateUserTypeResult
2018-07-10ConductorF
Factor: 439816714158670575289 / TF: 68-69
2016-10-28NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-08-16sasakiNF
no factor from 2^66 to 2^67
2014-02-22america64NF
no factor from 2^65 to 2^66
2012-02-03sasaki3NF
no factor from 2^64 to 2^65
2010-07-19Architects CubedNF
no factor from 2^63 to 2^64