Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
42039581TF
No factors below 273
TF target 272
P-1
B1 = 540000
B2 = 12015000
LL
StatusDateUserResidueShift
Verified2009-06-27curtiscFB67A1E1899AD0E210244819
Verified2017-09-15Sergey NosovFB67A1E1899AD0E25238674
History
DateUserTypeResult
2020-04-01Random GPUsNF
no factor from 2^72 to 2^73
2017-09-15Sergey NosovC-LL
FB67A1E1899AD0E2
2015-08-25-Anonymous-NF
no factor from 2^71 to 2^72
2012-01-18David CampeauNF-PM1
B1=540000, B2=12015000, E=12
2012-01-06David CampeauNF
no factor from 2^70 to 2^71
2012-01-06David CampeauNF
no factor from 2^69 to 2^70
2012-01-06David CampeauNF
no factor from 2^68 to 2^69
2009-06-27curtiscC-LL
FB67A1E1899AD0E2