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
838006549Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
28742276226323573878872271.32019-12-21 23:19:07
History
DateUserTypeResult
2019-12-21Alex_soldierF
Factor: 2874227622632357387887 / TF: 71-72
2019-10-07srow7NF
no factor from 2^70 to 2^71
2016-10-09ramgeisNF
no factor from 2^68 to 2^70
2015-08-03sasakiNF
no factor from 2^67 to 2^68
2015-01-22sasakiNF
no factor from 2^66 to 2^67
2012-03-30Damian SilvestreNF
no factor from 2^65 to 2^66
2012-03-30Damian SilvestreNF
no factor from 2^64 to 2^65
2010-07-15Architects CubedNF
no factor from 2^63 to 2^64