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

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MnStatusDetails
128025241Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2989234311269497946667192478.02024-04-15 20:30:37
P-1 factors
DateFactorB1B2
2024-04-15298923431126949794666719969000969000
History
DateUserTypeResult
2024-08-20Jarod McClintockNF
no factor from 2^71 to 2^72
2024-04-15Simon JosefssonF-PM1
Factor: 298923431126949794666719 / (P-1, B1=969000)
2023-01-08TravisJankNF
no factor from 2^76 to 2^77
2023-01-08TravisJankNF
no factor from 2^75 to 2^76
2022-12-21SRBaseNF
no factor from 2^74 to 2^75
2021-07-13SRBaseNF
no factor from 2^73 to 2^74
2020-10-20SRBaseNF
no factor from 2^72 to 2^73
2016-05-01SteinfattNF
no factor from 2^71 to 2^72
2016-04-30wangyun183NF
no factor from 2^70 to 2^71
2015-01-21La GüiraNF
no factor from 2^69 to 2^70
2015-01-21La GüiraNF
no factor from 2^68 to 2^69
2015-01-21La GüiraNF
no factor from 2^67 to 2^68
2015-01-09Judge HaleNF
no factor from 2^66 to 2^67
2012-09-27tscNF
no factor from 2^65 to 2^66
2010-11-07Charles A. MorrisNF
no factor from 2^64 to 2^65
2010-05-28WPSNF
no factor from 2^63 to 2^64