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

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MnStatusDetails
15605819Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
2379916112206971547.8old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-08-19PerigF13D1FA219D1BD291190763753
History
DateUserTypeResult
2023-08-19David BarleyCERT
PRP Certification
Proof certified good
2023-08-19PerigC-PRP
M15605819/237991611220697 : F13D1FA219D1BD29
PRP proof power = 8
PRP: Verified
Proof certified good
2023-07-25nordiNF-PM1
B1=480000, B2=308477400
2023-07-14nordiNF-PM1
B1=480000