Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
6883Composite, with 2 known prime factors. Cofactor is PRP (Probable-Prime).
Factored
FactorDigitsBitsDate
1885943720.8old
20430316648901991650.9old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-11-09kkmrkkblmbrbkPRP_PRP_PRP_PRP_270013
History
DateUserTypeResult
2017-11-09kkmrkkblmbrbkP-PRP
M6883/1885943/2043031664890199 is a probable prime.
2009-03-05-Anonymous-F-PM1
Factor: 2043031664890199