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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
215548843Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
422471645512649292202812375.22024-11-27 15:56:29
History
DateUserTypeResult
2024-11-27SRBaseF
Factor: 42247164551264929220281 / TF: 75-76*
2023-05-20SRBaseNF
no factor from 2^74 to 2^75
2021-02-20Torchwood InstituteNF
no factor from 2^73 to 2^74
2020-11-02SRBaseNF
no factor from 2^72 to 2^73
2020-06-20SRBaseNF
no factor from 2^71 to 2^72
2019-12-11Neutron3529NF
no factor from 2^70 to 2^71
2018-06-02Oliver KruseNF
no factor from 2^69 to 2^70
2017-12-26rubikvn2100NF
no factor from 2^68 to 2^69
2016-09-07Andrew BNF
no factor from 2^67 to 2^68
2015-10-21SADMASTERNF
no factor from 2^66 to 2^67
2012-07-08america64NF
no factor from 2^65 to 2^66
2011-05-27Pool SJNF
no factor from 2^64 to 2^65