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
12587833Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
7307992326491239.4old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-04-21PoaoA0F5B1B3DB60EB95166226053
History
DateUserTypeResult
2022-04-21curtiscCERT
PRP Certification
Proof certified good
2022-04-21PoaoC-PRP
M12587833/730799232649 : A0F5B1B3DB60EB95
PRP proof power = 8
PRP: Verified
Proof certified good
2022-04-19nordiNF-PM1
B1=400000, B2=428459850
2022-04-18nordiNF-PM1
B1=400000