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
6954191Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
13908383823.7old
42281481291032.02008-09-08 03:03:00
3015665754167245371858.12015-08-06 11:33:53
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-01-23Chang Chia-Tche5C81B80DAAE8B3F43372475453
Verified2019-02-08marssystems5C81B80DAAE8B3F4354471053
History
DateUserTypeResult
2024-01-02Stef42NF-PM1
B1=600000, B2=1280476890
2019-02-08marssystemsC-PRP
M6954191/13908383/4228148129/301566575416724537 : 5C81B80DAAE8B3F4
PRP: Verified
PRP without proof (not generated)
2018-01-23Chang Chia-TcheC-PRP
M6954191/13908383/4228148129/301566575416724537 : 5C81B80DAAE8B3F4
PRP: Verified
PRP without proof (not generated)
2015-08-06TJAOIF
Factor: 301566575416724537 / TF: 58-59
2008-09-08Will EdgingtonF
Factor: 4228148129