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
40065541TF
No factors below 274
TF target 272
P-1
B1 = 1000000
B2 = 20000000
LL
StatusDateUserResidueShift
Verified2009-10-20stigmv7561F22CAA27951516999185
Verified2017-02-03Sergey Nosov7561F22CAA2795154949761
History
DateUserTypeResult
2020-05-21Sid & AndyNF-PM1
B1=1000000, B2=20000000, E=12
2020-02-22-Anonymous-NF
no factor from 2^73 to 2^74
2019-09-30-Anonymous-NF
no factor from 2^72 to 2^73
2017-02-03Sergey NosovC-LL
7561F22CAA279515
2015-01-07Gordon SpenceNF
no factor from 2^71 to 2^72
2014-12-15monstNF
no factor from 2^69 to 2^71
2009-10-20stigmvC-LL
7561F22CAA279515