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
40071887TF
No factors below 274
TF target 272
P-1
B1 = 395000
B2 = 1975000
LL
StatusDateUserResidueShift
Verified2007-11-17C. Cooper / S. BooneE1669BC071A4073B16063797
Verified2017-02-12Alexander DubrovinE1669BC071A4073B1970916
History
DateUserTypeResult
2020-02-14-Anonymous-NF
no factor from 2^73 to 2^74
2019-10-05-Anonymous-NF
no factor from 2^72 to 2^73
2017-02-12Alexander DubrovinC-LL
E1669BC071A4073B
2014-12-31monstNF
no factor from 2^71 to 2^72
2014-12-21XyzzyNF
no factor from 2^70 to 2^71
2014-12-21XyzzyNF
no factor from 2^69 to 2^70
2013-10-28Carsten KossendeyNF
no factor from 2^68 to 2^69