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
156651877Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
383691572950347145336632375.02024-08-29 11:37:20
History
DateUserTypeResult
2025-06-05GregF
Factor: 38369157295034714533663 / TF: 75-76
2024-08-29SRBaseF
Factor: 38369157295034714533663 / TF: 75-76*
2023-02-22SRBaseNF
no factor from 2^74 to 2^75
2021-11-16SRBaseNF
no factor from 2^73 to 2^74
2018-04-16Yves de WandelaarNF
no factor from 2^72 to 2^73
2018-04-15el groccoNF
no factor from 2^71 to 2^72
2018-03-19proxy2222NF
no factor from 2^70 to 2^71
2017-11-27La GüiraNF
no factor from 2^69 to 2^70
2017-03-08rubikvn2100NF
no factor from 2^68 to 2^69
2016-05-07Rolf LarsenNF
no factor from 2^67 to 2^68
2015-04-15Jason UNF
no factor from 2^66 to 2^67
2013-02-08Mr-PlonkNF
no factor from 2^65 to 2^66
2011-01-26runeskNF
no factor from 2^64 to 2^65
2010-06-26James HintzNF
no factor from 2^63 to 2^64