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
38992777Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 272
P-1
B1 = 600000
B2 = 12000000
LL
StatusDateUserResidueShift
Verified2010-06-07André Jordi65CEAC3534383AB313656270
Verified2016-10-10Sergey Nosov65CEAC3534383AB330678348
History
DateUserTypeResult
2020-02-22-Anonymous-NF
no factor from 2^73 to 2^74
2019-10-18-Anonymous-NF
no factor from 2^72 to 2^73
2019-06-11monstNF
no factor from 2^71 to 2^72
2016-10-10Sergey NosovC-LL
65CEAC3534383AB3
2015-01-17Mark RoseNF
no factor from 2^70 to 2^71
2014-10-09HBendtzNF
no factor from 2^69 to 2^70
2014-08-29HBendtzNF-PM1
B1=600000, B2=12000000, E=12
2010-06-07André JordiC-LL
65CEAC3534383AB3
2009-08-02ANONYMOUSNF-PM1
B1=560000