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

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MnStatusDetails
176281253Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
388826344366455653833192375.02024-10-04 13:01:34
History
DateUserTypeResult
2025-06-04GregF
Factor: 38882634436645565383319 / TF: 75-76
2024-10-04SRBaseF
Factor: 38882634436645565383319 / TF: 75-76*
2023-03-31SRBaseNF
no factor from 2^74 to 2^75
2021-12-30SRBaseNF
no factor from 2^73 to 2^74
2018-03-23RichardNF
no factor from 2^72 to 2^73
2016-10-22nate.andersNF
no factor from 2^71 to 2^72
2016-06-19demfloroNF
no factor from 2^70 to 2^71
2016-06-19demfloroNF
no factor from 2^69 to 2^70
2016-06-19demfloroNF
no factor from 2^68 to 2^69
2016-06-19demfloroNF
no factor from 2^67 to 2^68
2015-07-07ANONYMOUSNF
no factor from 2^66 to 2^67
2013-04-18HardyP GermanyNF
no factor from 2^65 to 2^66
2011-03-09tscNF
no factor from 2^64 to 2^65
2010-07-17Torchwood InstituteNF
no factor from 2^63 to 2^64