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
12005419Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
3532462716447212411858.3old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-12-24Team_Inspector0BE5C41290F613EA1933564653
History
DateUserTypeResult
2023-06-14nordiNF-PM1
B1=400000, B2=428459850
2021-12-24John HockingCERT
PRP Certification
Proof certified good
2021-12-24Team_InspectorC-PRP
M12005419/353246271644721241 : 0BE5C41290F613EA
PRP proof power = 8
PRP: Verified
Proof certified good
2021-11-24nordiNF-PM1
B1=400000, B2=12000000
2021-11-21nordiNF-PM1
B1=400000