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
40804501TF
No factors below 274
TF target 272
P-1
B1 = 1000000
B2 = 20000000
LL
StatusDateUserResidueShift
Verified2008-11-16-Anonymous-D221FB7AE7DB043527456831
Verified2016-02-13eimharcD221FB7AE7DB043530908424
History
DateUserTypeResult
2020-10-29Sid & AndyNF-PM1
B1=1000000, B2=20000000, E=12
2020-01-12-Anonymous-NF
no factor from 2^73 to 2^74
2019-09-30-Anonymous-NF
no factor from 2^72 to 2^73
2016-02-13eimharcC-LL
D221FB7AE7DB0435
2015-06-05Gordon SpenceNF
no factor from 2^71 to 2^72
2015-01-11XyzzyNF
no factor from 2^70 to 2^71
2015-01-11XyzzyNF
no factor from 2^69 to 2^70
2008-11-16Dan HC-LL
D221FB7AE7DB0435