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
11757223Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
188115569927.5old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-10-31_p95holder_C93DCD0C5F7ACA0A1692695553
Verified2021-11-01LaurVC93DCD0C5F7ACA0A1372475353
History
DateUserTypeResult
2021-11-01Knut Andreas BrungotCERT
PRP Certification
Proof certified good
2021-11-01LaurVC-PRP
M11757223/188115569 : C93DCD0C5F7ACA0A
PRP proof power = 8
PRP: Verified
Proof certified good
2021-10-31_p95holder_C-PRP
M11757223/188115569 : C93DCD0C5F7ACA0A
PRP: Verified
PRP without proof (not generated)