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

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MnStatusDetails
145102121Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
20179364638902165237618280312890.72024-10-12 04:06:42
P-1 factors
DateFactorB1B2
2024-10-12201793646389021652376182803112710001520450250
History
DateUserTypeResult
2024-10-12Luke DurantF-PM1
Factor: 2017936463890216523761828031 / (P-1, B1=1271000, B2=1520450250)
2024-07-18SRBaseNF
no factor from 2^75 to 2^76
2024-05-06GregNF
no factor from 2^68 to 2^69
2023-01-28SRBaseNF
no factor from 2^74 to 2^75
2021-11-27SRBaseNF
no factor from 2^73 to 2^74
2020-10-27SRBaseNF
no factor from 2^72 to 2^73
2017-05-18StyMNF
no factor from 2^71 to 2^72
2017-05-18StyMNF
no factor from 2^70 to 2^71
2017-05-17La GüiraNF
no factor from 2^69 to 2^70
2016-11-20Josh FamestadNF
no factor from 2^68 to 2^69
2016-03-29DerekNF
no factor from 2^67 to 2^68
2015-03-03MucolNF
no factor from 2^66 to 2^67
2012-12-22Charles A. MorrisNF
no factor from 2^65 to 2^66
2010-12-25sasaki3NF
no factor from 2^64 to 2^65
2010-06-19sasaki3NF
no factor from 2^63 to 2^64