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
8000117Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
4189139288786093991858.5old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-07-05_p95holder_1AE5546AB9B14B4D1254251453
Verified2019-06-17timbit1AE5546AB9B14B4D155649553
History
DateUserTypeResult
2024-02-24Stef42NF-PM1
B1=921000, B2=1681748250
2022-12-13LordJuliusNF
no factor from 2^67 to 2^68
2022-12-13LordJuliusNF
no factor from 2^66 to 2^67
2022-12-13LordJuliusNF
no factor from 2^65 to 2^66
2022-12-13LordJuliusNF
no factor from 2^64 to 2^65
2019-06-17timbitC-PRP
M8000117/418913928878609399 : 1AE5546AB9B14B4D
PRP: Verified
PRP without proof (not generated)
2018-07-05_p95holder_C-PRP
M8000117/418913928878609399 : 1AE5546AB9B14B4D
PRP: Verified
PRP without proof (not generated)