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
383404283Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
19278414893492620408392270.72020-01-13 04:37:41
History
DateUserTypeResult
2025-04-05James HeinrichF
Factor: 1927841489349262040839 / TF: 70-71
2020-01-13Smok_bmv F
Factor: 1927841489349262040839 / TF: 70-71*
2018-07-27mikrNF
no factor from 2^68 to 2^70
2017-01-30Andrew BNF
no factor from 2^67 to 2^68
2015-05-11NRNF
no factor from 2^66 to 2^67
2014-04-23tscNF
no factor from 2^65 to 2^66
2011-04-08Architects CubedNF
no factor from 2^64 to 2^65