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
28179883Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 270
P-1
B1 = 922000
B2 = 2547363000
LL
StatusDateUserResidueShift
Verified2005-09-22Dandot Moore2DB1A499FEFB120110021490
Verified2011-11-19-Anonymous-2DB1A499FEFB12015494223
History
DateUserTypeResult
2025-07-09Jason LynchNF-PM1
B1=922000, B2=2547363000
2021-10-28TheJudgerNF
no factor from 2^74 to 2^75
2021-09-10TheJudgerNF
no factor from 2^73 to 2^74
2021-08-24TheJudgerNF
no factor from 2^72 to 2^73
2021-08-22TheJudgerNF
no factor from 2^71 to 2^72
2020-12-27mikrNF
no factor from 2^70 to 2^71
2017-04-28YxinityNF
no factor from 2^69 to 2^70
2017-04-28YxinityNF
no factor from 2^68 to 2^69
2011-11-19-Anonymous-C-LL
2DB1A499FEFB1201