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
172447789Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
613413975804997517543592375.72024-09-19 08:01:51
History
DateUserTypeResult
2025-06-03GregF
Factor: 61341397580499751754359 / TF: 75-76
2024-09-19SRBaseF
Factor: 61341397580499751754359 / TF: 75-76*
2023-03-22SRBaseNF
no factor from 2^74 to 2^75
2021-12-25SRBaseNF
no factor from 2^73 to 2^74
2019-03-03Yves de WandelaarNF
no factor from 2^72 to 2^73
2019-03-03lobsterfordinnerNF
no factor from 2^71 to 2^72
2018-09-07ZenghuiNF
no factor from 2^70 to 2^71
2017-05-16YxinityNF
no factor from 2^69 to 2^70
2017-05-16YxinityNF
no factor from 2^68 to 2^69
2016-06-04sasaki3NF
no factor from 2^67 to 2^68
2015-08-20nikoszNF
no factor from 2^66 to 2^67
2013-04-09RichardNF
no factor from 2^65 to 2^66
2011-02-27sasaki3NF
no factor from 2^64 to 2^65
2010-07-12Torchwood InstituteNF
no factor from 2^63 to 2^64