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
189388513Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
129487802431962577689112373.52019-01-28 04:28:27
History
DateUserTypeResult
2025-04-20ChuckF
Factor: 12948780243196257768911 / TF: 73-74
2019-01-28Smok_bmv F
Factor: 12948780243196257768911 / TF: 73-74*
2019-01-25Smok_bmv NF
no factor from 2^72 to 2^73
2019-01-13lobsterfordinnerNF
no factor from 2^71 to 2^72
2019-01-12RuzovejNF
no factor from 2^70 to 2^71
2018-11-11Chabot PrimeNF
no factor from 2^69 to 2^70
2017-07-31tmorrowNF
no factor from 2^68 to 2^69
2016-08-02tmorrowNF
no factor from 2^67 to 2^68
2015-08-25Mr-PlonkNF
no factor from 2^66 to 2^67
2013-06-02MucolNF
no factor from 2^65 to 2^66
2011-04-08dslNF
no factor from 2^64 to 2^65
2010-08-01Torchwood InstituteNF
no factor from 2^63 to 2^64