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
40828817TF
No factors below 274
TF target 272
P-1
B1 = 1000000
B2 = 20000000
LL
StatusDateUserResidueShift
Verified2008-10-05Luigi Morelli4132E8356BA3FEBC30439939
Verified2017-05-05Sergey Nosov4132E8356BA3FEBC20934362
History
DateUserTypeResult
2020-08-27Sid & AndyNF-PM1
B1=1000000, B2=20000000, E=12
2020-01-12-Anonymous-NF
no factor from 2^73 to 2^74
2019-09-27-Anonymous-NF
no factor from 2^72 to 2^73
2017-05-05Sergey NosovC-LL
4132E8356BA3FEBC
2015-06-04ktonyNF
no factor from 2^71 to 2^72
2015-01-04XyzzyNF
no factor from 2^70 to 2^71
2015-01-04XyzzyNF
no factor from 2^69 to 2^70
2013-11-21Torben K.NF
no factor from 2^68 to 2^69