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
25920911Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 270
P-1
B1 = 305000
B2 = 6328750
LL
StatusDateUserResidueShift
Verified2005-08-16David A. Evans7B83FED1CCB4E95D23218965
Verified2011-03-07tibancs7B83FED1CCB4E95D11857586
History
DateUserTypeResult
2021-10-17TheJudgerNF
no factor from 2^74 to 2^75
2021-09-19TheJudgerNF
no factor from 2^73 to 2^74
2021-08-26TheJudgerNF
no factor from 2^72 to 2^73
2021-08-26TheJudgerNF
no factor from 2^71 to 2^72
2021-07-20mikrNF
no factor from 2^70 to 2^71
2017-07-02ramgeisNF
no factor from 2^69 to 2^70
2017-07-02ramgeisNF
no factor from 2^68 to 2^69
2016-10-23VictordeHollanderNF
no factor from 2^67 to 2^68
2011-03-07tibancsC-LL
7B83FED1CCB4E95D