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Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
166891787Tested as composite (unverified, reliable): unconfirmed PRP test says not-prime
TF
No factors below 276
TF target 278
P-1
B1 = 1393000
B2 = 888201600
PRP
StatusDateUserResidueShiftTypeBase
Unverified (Reliable)2024-11-26CorranB8CC50399498EC__1955881613
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2024-11-26weltonPRP proof certificationCERT85.27 % 2024-11-28
History
DateUserTypeResult
2024-11-26CorranC-PRP
B8CC50399498EC__
PRP proof power = 8
PRP: Unverified (Reliable)
Uncertified
2024-09-10SRBaseNF
no factor from 2^75 to 2^76
2024-08-17Luke DurantNF-PM1
B1=1393000, B2=888201600
2023-03-12SRBaseNF
no factor from 2^74 to 2^75
2021-12-12SRBaseNF
no factor from 2^73 to 2^74
2018-08-14RichardNF
no factor from 2^72 to 2^73
2018-08-09RichardNF
no factor from 2^71 to 2^72
2018-08-05chaciakNF
no factor from 2^70 to 2^71
2014-12-11La GüiraNF
no factor from 2^69 to 2^70
2014-12-11La GüiraNF
no factor from 2^68 to 2^69
2014-12-11La GüiraNF
no factor from 2^67 to 2^68
2014-06-16Gordon SpenceNF
no factor from 2^66 to 2^67
2013-03-18sasaki3NF
no factor from 2^65 to 2^66
2011-02-12runeskNF
no factor from 2^64 to 2^65
2010-07-06Cedric VonckNF
no factor from 2^63 to 2^64