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

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MnStatusDetails
15003497Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
720167857929.4old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-05-07Perig210181F149993E621557879953
History
DateUserTypeResult
2023-05-07Chun sung sooCERT
PRP Certification
Proof certified good
2023-05-07PerigC-PRP
M15003497/720167857 : 210181F149993E62
PRP proof power = 8
PRP: Verified
Proof certified good
2023-04-21JacobZNF-PM1
B1=578000, B2=550533060
2021-07-26ViliamFNF
no factor from 2^67 to 2^68