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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
74518427Composite: proven not-prime with PRP test
TF
No factors below 275
TF target 274
P-1
B1 = 620000
B2 = 12090000
LL
StatusDateUserResidueShift
Unverified2016-03-21aurashiftA52ECB564841E0__8678318
PRP
StatusDateUserResidueShiftTypeBase
Verified2024-11-28Luke Durant8FFC558FDEB520B3013
History
DateUserTypeResult
2024-11-28XyzzyCERT
PRP Certification
CERT proof power = 9
Proof certified good
2024-11-28Luke DurantC-PRP
8FFC558FDEB520B3
PRP proof power = 9
PRP: Verified
Proof certified good
2016-04-02Mark RoseNF
no factor from 2^57 to 2^64
2016-03-21aurashiftC-LL
A52ECB564841E0__
2016-03-13monstNF-PM1
B1=620000, B2=12090000, E=6
2016-02-15AirSquirrelsNF
no factor from 2^74 to 2^75
2016-02-15AirSquirrelsNF
no factor from 2^73 to 2^74
2015-10-18BdotNF
no factor from 2^72 to 2^73
2015-08-22ChuckNF
no factor from 2^71 to 2^72
2013-12-09ANONYMOUSNF
no factor from 2^70 to 2^71
2012-11-08-Anonymous-NF
no factor from 2^69 to 2^70
2011-01-31DeltronNF
no factor from 2^68 to 2^69
2011-01-25Sergej LevinNF
no factor from 2^67 to 2^68
2010-07-26eon_blue_apocalypseNF
no factor from 2^66 to 2^67
2010-07-23alan145NF
no factor from 2^65 to 2^66
2010-07-12johnniekNF
no factor from 2^64 to 2^65