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
742001999Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
18669777596700574493992270.72019-05-15 08:55:21
History
DateUserTypeResult
2019-05-15Alex_soldierF
Factor: 1866977759670057449399 / TF: 70-71
2014-01-29monstNF
no factor from 2^66 to 2^70
2013-08-20america64NF
no factor from 2^65 to 2^66
2011-05-24monstNF
no factor from 2^64 to 2^65
2010-06-17Architects CubedNF
no factor from 2^63 to 2^64