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
11665697Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 268
P-1
B1 = 14045500
B2 = 125644559040
ECM
DigitsB1Curves
255000031 / 280
Estimated T-Level: 20.6 ⓘ
LL
StatusDateUserResidueShift
Verified2001-05-20Northwestern CollegeAB07780DEAB2BCC58078627
Verified2004-04-20Jason KowzunAB07780DEAB2BCC510561286
History
DateUserTypeResult
2025-03-28yuriy_5-1NF
no factor from 2^74 to 2^75
2024-12-19yuriy_5-1NF
no factor from 2^73 to 2^74
2024-08-16yuriy_5-1NF
no factor from 2^72 to 2^73
2024-06-24yuriy_5-1NF-PM1
B1=14045500, B2=125644559040
2024-04-22yuriy_5-1NF-PM1
B1=6416586, B2=2977697580
2018-02-05Oliver KruseNF
no factor from 2^67 to 2^72
2018-01-23ramgeisNF
no factor from 2^68 to 2^69
2018-01-23ramgeisNF
no factor from 2^67 to 2^68
2016-01-30VictordeHollanderNF
no factor from 2^66 to 2^67
2014-12-20NesowaNF
no factor from 2^65 to 2^66
2013-11-02lycornNF
no factor from 2^64 to 2^65
2012-03-30James HeinrichNF-PM1
B1=225000, B2=5400000, E=6