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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
74362031Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 645000
B2 = 12900000
LL
StatusDateUserResidueShift
Verified2015-08-16jch937D9D85CD5889EA33362694
Verified2024-11-27Jurzal937D9D85CD5889EA56848383
History
DateUserTypeResult
2024-11-27JurzalC-LL
937D9D85CD5889EA
2015-08-16jchC-LL
937D9D85CD5889EA
2015-07-19TheJudgerNF-PM1
B1=645000, B2=12900000, E=12
2015-07-12kdgehmanNF
no factor from 2^74 to 2^75
2015-07-12kdgehmanNF
no factor from 2^73 to 2^74
2015-07-12kdgehmanNF
no factor from 2^72 to 2^73
2015-07-12kdgehmanNF
no factor from 2^71 to 2^72
2012-12-22ITSNF
no factor from 2^70 to 2^71
2012-10-17rx7350NF
no factor from 2^69 to 2^70
2010-10-06Gordon SpenceNF
no factor from 2^68 to 2^69
2010-09-27Gordon SpenceNF
no factor from 2^67 to 2^68
2010-09-18Ge yongNF
no factor from 2^66 to 2^67
2010-07-15lindedNF
no factor from 2^65 to 2^66
2010-07-10lindedNF
no factor from 2^64 to 2^65
2008-09-12lycornNF
no factor to 2^64