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
25893391Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 270
P-1
B1 = 280000
B2 = 3010000
LL
StatusDateUserResidueShift
Verified2005-01-10Ars Technica Team Prime Rib0536C0FEF7DBD5283639311
Verified2010-12-22he4var0536C0FEF7DBD5281084439
History
DateUserTypeResult
2021-08-26TheJudgerNF
no factor from 2^72 to 2^73
2021-08-26TheJudgerNF
no factor from 2^71 to 2^72
2021-07-19mikrNF
no factor from 2^70 to 2^71
2017-06-28ramgeisNF
no factor from 2^69 to 2^70
2017-06-28ramgeisNF
no factor from 2^68 to 2^69
2016-10-23VictordeHollanderNF
no factor from 2^67 to 2^68
2010-12-22he4varC-LL
0536C0FEF7DBD528