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
378163883Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
39551100215881193663212271.72019-12-30 04:26:27
History
DateUserTypeResult
2025-05-07James HeinrichF
Factor: 3955110021588119366321 / TF: 71-72
2019-12-30Smok_bmv F
Factor: 3955110021588119366321 / TF: 71-72*
2019-12-30Smok_bmv NF
no factor from 2^70 to 2^71
2019-02-01sasakiNF
no factor from 2^69 to 2^70
2018-08-30Niels_Mache_NextcloudNF
no factor from 2^68 to 2^69
2017-01-24rubikvn2100NF
no factor from 2^67 to 2^68
2016-04-04mikeblasNF
no factor from 2^66 to 2^67
2014-04-12tscNF
no factor from 2^65 to 2^66
2011-03-16Architects CubedNF
no factor from 2^64 to 2^65