Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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MnStatusDetails
553230283Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
38793739555958211865612271.72020-01-29 19:07:39
History
DateUserTypeResult
2025-04-06James HeinrichF
Factor: 3879373955595821186561 / TF: 71-72
2020-01-29Smok_bmv F
Factor: 3879373955595821186561 / TF: 71-72*
2019-11-13sasakiNF
no factor from 2^70 to 2^71
2018-10-30Niels_Mache_NextcloudNF
no factor from 2^69 to 2^70
2018-03-26sasakiNF
no factor from 2^68 to 2^69
2016-05-30Bruno VictalNF
no factor from 2^67 to 2^68
2015-11-10sasakiNF
no factor from 2^66 to 2^67
2014-08-18sasakiNF
no factor from 2^65 to 2^66
2011-09-28Architects CubedNF
no factor from 2^64 to 2^65