Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
971242709Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
521940075679397416620492375.52024-09-19 18:50:59
History
DateUserTypeResult
2025-06-12GregF
Factor: 52194007567939741662049 / TF: 75-76
2024-09-19srow7F
Factor: 52194007567939741662049 / TF: 75-76*
2023-02-17srow7NF
no factor from 2^74 to 2^75
2022-04-14srow7NF
no factor from 2^73 to 2^74
2021-06-30SRBaseNF
no factor from 2^72 to 2^73
2020-10-23SRBaseNF
no factor from 2^71 to 2^72
2018-11-09Niels_Mache_NextcloudNF
no factor from 2^70 to 2^71
2017-02-19ramgeisNF
no factor from 2^69 to 2^70
2016-11-01Sergey KomolovNF
no factor from 2^68 to 2^69
2016-06-03NoPolarBearsHereNF
no factor from 2^67 to 2^68
2015-02-10Gordon SpenceNF
no factor from 2^66 to 2^67
2012-07-07lindedNF
no factor from 2^65 to 2^66
2011-01-02lindedNF
no factor from 2^64 to 2^65
2010-04-05lindeeNF
no factor from 2^63 to 2^64