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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
215418919Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
665443436531390197031592375.82024-11-27 15:56:24
History
DateUserTypeResult
2024-11-27SRBaseF
Factor: 66544343653139019703159 / TF: 75-76*
2023-05-20SRBaseNF
no factor from 2^74 to 2^75
2021-03-14workerthreadNF
no factor from 2^73 to 2^74
2020-10-27SRBaseNF
no factor from 2^72 to 2^73
2020-06-13SRBaseNF
no factor from 2^71 to 2^72
2017-01-29SourceBinary.comNF
no factor from 2^70 to 2^71
2017-01-29SourceBinary.comNF
no factor from 2^69 to 2^70
2017-01-29SourceBinary.comNF
no factor from 2^68 to 2^69
2016-09-07vwflat4NF
no factor from 2^67 to 2^68
2015-10-20NoPolarBearsHereNF
no factor from 2^66 to 2^67
2012-07-10america64NF
no factor from 2^65 to 2^66
2011-05-28RichardNF
no factor from 2^64 to 2^65