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
248574143Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3795073072694472875512168.42018-05-27 11:54:46
History
DateUserTypeResult
2025-03-14James HeinrichF
Factor: 379507307269447287551 / TF: 68-70
2018-05-27Stanislav_KhokhrinF
Factor: 379507307269447287551 / TF: 68-69
2016-10-20enderhirodantezeusNF
no factor from 2^67 to 2^68
2015-12-13TrumpfPuurNF
no factor from 2^66 to 2^67
2013-11-05Yan Ruimin ChinaNF
no factor from 2^65 to 2^66
2011-07-23sannerud.comNF
no factor from 2^64 to 2^65
2010-05-16Architects CubedNF
no factor from 2^63 to 2^64
2010-03-01monstNF
no factor from 2^62 to 2^63