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
6998177Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
41989063825.3old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-01-28Chang Chia-Tche3C981288D420B8321581469753
Verified2019-02-22kkmrkkblmbrbk3C981288D420B8321497562053
History
DateUserTypeResult
2024-01-01Stef42NF-PM1
B1=600000, B2=1280476890
2019-02-22kkmrkkblmbrbkC-PRP
M6998177/41989063 : 3C981288D420B832
PRP: Verified
PRP without proof (not generated)
2018-01-28Chang Chia-TcheC-PRP
M6998177/41989063 : 3C981288D420B832
PRP: Verified
PRP without proof (not generated)