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
8916199Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
360925060660311445.0old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2019-04-04artorollo91AA71649497B2051457988353
Verified2020-09-23marssystems91AA71649497B2051616823953
History
DateUserTypeResult
2024-11-19Stef42NF-PM1
B1=2531000, B2=3125118150
2024-11-17Stef42NF
no factor from 2^68 to 2^69
2020-09-23marssystemsC-PRP
M8916199/36092506066031 : 91AA71649497B205
PRP: Verified
PRP without proof (not generated)
2019-04-04artorolloC-PRP
M8916199/36092506066031 : 91AA71649497B205
PRP: Verified
PRP without proof (not generated)