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
38431073TF
No factors below 273
TF target 272
P-1
B1 = 400000
B2 = 12000000
LL
StatusDateUserResidueShift
Verified2007-09-28Robert Barbrow0F926037FBC1234E27557890
Verified2016-08-08Sergey Nosov0F926037FBC1234E10429568
History
DateUserTypeResult
2022-06-18Sid & AndyNF
no factor from 2^72 to 2^73
2019-03-11monstNF
no factor from 2^71 to 2^72
2016-08-08Sergey NosovC-LL
0F926037FBC1234E
2016-05-15HBendtzNF-PM1
B1=400000, B2=12000000, E=12
2014-12-03ChuckNF
no factor from 2^70 to 2^71
2014-11-24BdotNF
no factor from 2^69 to 2^70
2013-08-11krackerNF
no factor from 2^68 to 2^69