Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
74168243Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 640000
B2 = 12640000
LL
StatusDateUserResidueShift
Verified2017-08-07ShnobelD841D2CB2757A04056768179
Verified2022-09-24Remi LucetD841D2CB2757A04061106681
History
DateUserTypeResult
2022-09-24Remi LucetC-LL
D841D2CB2757A040
2017-08-07ShnobelC-LL
D841D2CB2757A040
2015-08-16TheJudgerNF-PM1
B1=640000, B2=12640000, E=6
2015-08-04ChuckNF
no factor from 2^74 to 2^75
2015-06-15gcardonaNF
no factor from 2^73 to 2^74
2015-05-31BdotNF
no factor from 2^72 to 2^73
2015-05-30ixfd64NF
no factor from 2^71 to 2^72
2013-05-07PascalBieriNF
no factor from 2^70 to 2^71
2012-10-23Clown_RoyalNF
no factor from 2^69 to 2^70
2010-09-19Helmut ZulusNF
no factor from 2^68 to 2^69
2010-09-13Sid & AndyNF
no factor from 2^67 to 2^68
2010-09-06Sid & AndyNF
no factor from 2^66 to 2^67
2010-09-02-Anonymous-NF
no factor from 2^65 to 2^66
2010-06-27HighPriceRanchNF
no factor from 2^64 to 2^65
2008-09-12lycornNF
no factor to 2^64