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
7779253Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
182446509438891444.1old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-05-15_p95holder_5A18FD83096355691718501253
Verified2019-09-29Alvin Bunk5A18FD83096355691596499153
History
DateUserTypeResult
2024-01-30Stef42NF-PM1
B1=875000, B2=2044750890
2019-09-29Alvin BunkC-PRP
M7779253/18244650943889 : 5A18FD8309635569
PRP: Verified
PRP without proof (not generated)
2018-05-15_p95holder_C-PRP
M7779253/18244650943889 : 5A18FD8309635569
PRP: Verified
PRP without proof (not generated)