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
21993341Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 269
P-1
B1 = 250000
B2 = 5125000
LL
StatusDateUserResidueShift
Verified2004-08-20Carlo MonariEF87B8EF011457B117987530
Verified2009-06-05Jeremy AttriEF87B8EF011457B112985878
History
DateUserTypeResult
2021-11-27TheJudgerNF
no factor from 2^74 to 2^75
2021-10-02TheJudgerNF
no factor from 2^73 to 2^74
2021-09-06TheJudgerNF
no factor from 2^72 to 2^73
2021-09-06TheJudgerNF
no factor from 2^71 to 2^72
2021-09-06TheJudgerNF
no factor from 2^70 to 2^71
2018-04-15ramgeisNF
no factor from 2^69 to 2^70
2017-12-11VictordeHollanderNF
no factor from 2^68 to 2^69
2017-04-24ramgeisNF
no factor from 2^67 to 2^68
2009-06-05Jeremy AttriC-LL
EF87B8EF011457B1