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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
74357221Composite: proven not-prime with PRP test
TF
No factors below 275
TF target 274
P-1
B1 = 645000
B2 = 12900000
LL
StatusDateUserResidueShift
Unverified2016-04-23zeleniyBB9EC19E9EE2C2__17333365
PRP
StatusDateUserResidueShiftTypeBase
Verified2024-11-26Luke DurantF0D31F8A1FE1AEB3013
History
DateUserTypeResult
2024-11-26PoaoCERT
PRP Certification
CERT proof power = 9
Proof certified good
2024-11-26Luke DurantC-PRP
F0D31F8A1FE1AEB3
PRP proof power = 9
PRP: Verified
Proof certified good
2016-04-23zeleniyC-LL
BB9EC19E9EE2C2__
2015-07-12TheJudgerNF-PM1
B1=645000, B2=12900000, E=12
2015-07-06fre_gamesNF
no factor from 2^74 to 2^75
2015-07-05fre_gamesNF
no factor from 2^73 to 2^74
2015-07-05fre_gamesNF
no factor from 2^72 to 2^73
2015-07-05fre_gamesNF
no factor from 2^71 to 2^72
2013-07-05Le ComteNF
no factor from 2^70 to 2^71
2013-05-11ITSNF
no factor from 2^69 to 2^70
2010-09-25arnaudNF
no factor from 2^68 to 2^69
2010-09-19arnaudNF
no factor from 2^67 to 2^68
2010-07-15AvernonNF
no factor from 2^66 to 2^67
2010-07-13GrunwalderGIMPNF
no factor from 2^65 to 2^66
2010-07-12Lord_DragonNF
no factor from 2^64 to 2^65
2008-09-12lycornNF
no factor to 2^64