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
428007583Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
31112221301463872651592271.42019-11-21 16:49:06
History
DateUserTypeResult
2024-05-19Jarod McClintockNF
no factor from 2^68 to 2^69
2019-11-21Smok_bmv F
Factor: 3111222130146387265159 / TF: 71-72
2018-11-20Niels_Mache_NextcloudNF
no factor from 2^70 to 2^71
2017-04-10YxinityNF
no factor from 2^69 to 2^70
2016-12-15ConductorNF
no factor from 2^68 to 2^69
2015-11-18sasakiNF
no factor from 2^66 to 2^68
2014-08-03AndrewSpurrierNF
no factor from 2^65 to 2^66