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
531110483Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
31959153234812913082012271.42020-01-13 14:18:52
History
DateUserTypeResult
2025-04-12James HeinrichF
Factor: 3195915323481291308201 / TF: 71-72
2020-01-13Smok_bmv F
Factor: 3195915323481291308201 / TF: 71-72*
2019-07-30sasakiNF
no factor from 2^70 to 2^71
2019-01-16ATHNF
no factor from 2^69 to 2^70
2017-07-19sasakiNF
no factor from 2^68 to 2^69
2016-09-23sasakiNF
no factor from 2^67 to 2^68
2016-02-20sasakiNF
no factor from 2^66 to 2^67
2014-11-03Robert FolzNF
no factor from 2^65 to 2^66
2012-01-02Mr-PlonkNF
no factor from 2^64 to 2^65
2010-07-09Architects CubedNF
no factor from 2^63 to 2^64