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
26825047Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 270
P-1
B1 = 305000
B2 = 4041250
LL
StatusDateUserResidueShift
Verified2005-02-02Francesco Urbano7D1D47B4A22EE48E16025199
Verified2011-03-22KIM7D1D47B4A22EE48E14603700
History
DateUserTypeResult
2021-10-17TheJudgerNF
no factor from 2^74 to 2^75
2021-09-19TheJudgerNF
no factor from 2^73 to 2^74
2021-08-24TheJudgerNF
no factor from 2^72 to 2^73
2021-08-24TheJudgerNF
no factor from 2^71 to 2^72
2021-05-20mikrNF
no factor from 2^70 to 2^71
2018-08-13-Anonymous-NF
no factor from 2^69 to 2^70
2018-04-01VictordeHollanderNF
no factor from 2^68 to 2^69
2016-12-16NRNF
no factor from 2^67 to 2^68
2011-03-22KIMC-LL
7D1D47B4A22EE48E