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
283731757Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
6665925780745597507672169.22019-08-01 16:44:00
History
DateUserTypeResult
2025-03-18James HeinrichF
Factor: 666592578074559750767 / TF: 69-70
2019-08-01Alexander TsupkoF
Factor: 666592578074559750767 / TF: 69-70
2018-07-15Chabot PrimeNF
no factor from 2^68 to 2^69
2016-11-21XolotlNF
no factor from 2^67 to 2^68
2016-01-24Jason UNF
no factor from 2^66 to 2^67
2014-06-13Andrew BNF
no factor from 2^65 to 2^66
2011-09-19oodairaNF
no factor from 2^64 to 2^65