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
8004223Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
1058345745840723940332166.5old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-07-09_p95holder_21335B79FB99538F1693569353
Verified2019-12-27daveward200521335B79FB99538F173728253
History
DateUserTypeResult
2024-02-25Stef42NF-PM1
B1=937000, B2=1756495650
2019-12-27daveward2005C-PRP
M8004223/105834574584072394033 : 21335B79FB99538F
PRP: Verified
PRP without proof (not generated)
2018-07-09_p95holder_C-PRP
M8004223/105834574584072394033 : 21335B79FB99538F
PRP: Verified
PRP without proof (not generated)