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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
215162567Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
557424188028894470795112375.62024-11-27 15:55:17
History
DateUserTypeResult
2024-11-27SRBaseF
Factor: 55742418802889447079511 / TF: 75-76*
2023-05-20SRBaseNF
no factor from 2^74 to 2^75
2021-02-09Will EdgingtonNF
no factor from 2^73 to 2^74
2020-10-27SRBaseNF
no factor from 2^72 to 2^73
2020-06-14SRBaseNF
no factor from 2^71 to 2^72
2020-01-27Chabot PrimeNF
no factor from 2^70 to 2^71
2018-05-26ZenghuiNF
no factor from 2^69 to 2^70
2017-12-22M.A.G.NF
no factor from 2^68 to 2^69
2016-09-07DerekNF
no factor from 2^67 to 2^68
2015-12-18sasakiNF
no factor from 2^66 to 2^67
2012-07-08america64NF
no factor from 2^65 to 2^66
2011-05-26Charles A. MorrisNF
no factor from 2^64 to 2^65