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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
74438513Composite: proven not-prime with PRP test
TF
No factors below 275
TF target 274
P-1
B1 = 635000
B2 = 11906250
LL
StatusDateUserResidueShift
Unverified2016-02-22drjohnny1F222CA8E7C842__29262249
PRP
StatusDateUserResidueShiftTypeBase
Verified2024-11-27Greg27A98CF59B47E000013
History
DateUserTypeResult
2024-11-27Henning GerhardtCERT
PRP Certification
CERT proof power = 9
Proof certified good
2024-11-27GregC-PRP
27A98CF59B47E000
PRP proof power = 9
PRP: Verified
Proof certified good
2016-02-22drjohnnyC-LL
1F222CA8E7C842__
2015-11-22J LloydNF-PM1
B1=635000, B2=11906250
2015-11-01TheJudgerNF
no factor from 2^74 to 2^75
2015-11-01TheJudgerNF
no factor from 2^73 to 2^74
2015-10-08Judge HaleNF
no factor from 2^72 to 2^73
2015-08-16Judge HaleNF
no factor from 2^71 to 2^72
2013-05-13PascalBieriNF
no factor from 2^70 to 2^71
2012-10-23Houd Al-ObaidliNF
no factor from 2^69 to 2^70
2010-12-13Per JessenNF
no factor from 2^68 to 2^69
2010-12-07Per JessenNF
no factor from 2^67 to 2^68
2010-12-04Per JessenNF
no factor from 2^66 to 2^67
2010-11-30-Anonymous-NF
no factor from 2^65 to 2^66
2010-09-13SAHS Tech DeptNF
no factor from 2^64 to 2^65
2008-09-12lycornNF
no factor to 2^64