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
38901521TF
No factors below 275
TF target 272
P-1
B1 = 420000
B2 = 4935000
LL
StatusDateUserResidueShift
Verified2008-06-03Fabio Rezzonico04F83155CBD8764214431706
Verified2016-09-24Sergey Nosov04F83155CBD8764215933294
History
DateUserTypeResult
2020-11-15-Anonymous-NF
no factor from 2^74 to 2^75
2020-02-21-Anonymous-NF
no factor from 2^73 to 2^74
2019-10-11-Anonymous-NF
no factor from 2^72 to 2^73
2019-04-14monstNF
no factor from 2^71 to 2^72
2016-09-24Sergey NosovC-LL
04F83155CBD87642
2014-12-07XyzzyNF
no factor from 2^70 to 2^71
2014-12-07XyzzyNF
no factor from 2^69 to 2^70
2013-08-30america64NF
no factor from 2^68 to 2^69