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

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MnStatusDetails
119553521Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
16014855777979600059321011212890.42022-12-19 00:08:44
P-1 factors
DateFactorB1B2
2022-12-19160148557779796000593210112158100026346000
History
DateUserTypeResult
2022-12-19ky0urakuF-PM1
Factor: 1601485577797960005932101121 / (P-1, B1=581000, B2=26346000)
2021-07-11jwnutterNF
no factor from 2^76 to 2^77
2021-04-04FlaukrotistNF
no factor from 2^75 to 2^76
2021-04-04FlaukrotistNF
no factor from 2^74 to 2^75
2021-04-04FlaukrotistNF
no factor from 2^73 to 2^74
2020-11-13SRBaseNF
no factor from 2^72 to 2^73
2015-05-15XebecerNF
no factor from 2^71 to 2^72
2015-05-15XebecerNF
no factor from 2^70 to 2^71
2015-05-15XebecerNF
no factor from 2^69 to 2^70
2015-04-25Mihai PredaNF
no factor from 2^68 to 2^69
2015-04-14Mihai PredaNF
no factor from 2^67 to 2^68
2014-12-16tscNF
no factor from 2^66 to 2^67
2012-07-25Mr-PlonkNF
no factor from 2^65 to 2^66
2010-10-17sasaki3NF
no factor from 2^64 to 2^65
2010-05-15Mr-PlonkNF
no factor from 2^63 to 2^64