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
322448927Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
257218780959650675260632374.42023-09-19 12:44:27
History
DateUserTypeResult
2023-09-19Dmitry BolshakovF
Factor: 25721878095965067526063
2022-03-26SRBaseNF
no factor from 2^73 to 2^74
2021-01-06SRBaseNF
no factor from 2^72 to 2^73
2020-07-25SRBaseNF
no factor from 2^71 to 2^72
2020-05-17SRBaseNF
no factor from 2^70 to 2^71
2019-02-20sasakiNF
no factor from 2^69 to 2^70
2018-08-11Chabot PrimeNF
no factor from 2^68 to 2^69
2016-12-24ANONYMOUSNF
no factor from 2^67 to 2^68
2016-02-29rubikvn2100NF
no factor from 2^66 to 2^67
2014-02-01AserobertoNF
no factor from 2^65 to 2^66
2011-11-07Mr-PlonkNF
no factor from 2^64 to 2^65