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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
74480407Composite: proven not-prime with PRP test
TF
No factors below 275
TF target 274
P-1
B1 = 645000
B2 = 12900000
LL
StatusDateUserResidueShift
Unverified2016-03-28-Anonymous-C8EBFBBEE13232__9357573
PRP
StatusDateUserResidueShiftTypeBase
Verified2024-11-27Luke Durant299D9CCEA56091C8013
History
DateUserTypeResult
2024-11-28XyzzyCERT
PRP Certification
CERT proof power = 9
Proof certified good
2024-11-27Luke DurantC-PRP
299D9CCEA56091C8
PRP proof power = 9
PRP: Verified
Proof certified good
2016-03-28-Anonymous-C-LL
C8EBFBBEE13232__
2015-11-01TheJudgerNF-PM1
B1=645000, B2=12900000, E=12
2015-10-29AirSquirrelsNF
no factor from 2^74 to 2^75
2015-10-29AirSquirrelsNF
no factor from 2^73 to 2^74
2015-10-14BdotNF
no factor from 2^72 to 2^73
2013-12-30Smok_bmv NF
no factor from 2^71 to 2^72
2013-12-30Smok_bmv NF
no factor from 2^70 to 2^71
2012-10-21evatutinNF
no factor from 2^69 to 2^70
2010-08-09MarekBNF
no factor from 2^68 to 2^69
2010-07-23Bold_SeekerNF
no factor from 2^67 to 2^68
2010-07-22Bold_SeekerNF
no factor from 2^66 to 2^67
2010-07-21-Anonymous-NF
no factor from 2^65 to 2^66
2010-07-08Aldo_GridNF
no factor from 2^64 to 2^65
2008-09-12lycornNF
no factor to 2^64