Marin Mersenne 2^P-1
Username
Password
Forgot password?
Black
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
11674571Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 276
TF target 268
P-1
B1 = 14056184
B2 = 125644559040
ECM
DigitsB1Curves
255000074 / 280
Estimated T-Level: 21.3 ⓘ
LL
StatusDateUserResidueShift
Verified2001-10-13Piotr SzymanekCFD6D8282284BC147661255
Verified2004-11-03Brian CoutureCFD6D8282284BC149654392
History
DateUserTypeResult
2025-04-28yuriy_5-1NF
no factor from 2^75 to 2^76
2025-01-16yuriy_5-1NF
no factor from 2^74 to 2^75
2024-10-11yuriy_5-1NF-PP1
Start=2/7, B1=1000000, B2=100000000
2024-09-09yuriy_5-1NF
no factor from 2^73 to 2^74
2024-08-16yuriy_5-1NF
no factor from 2^72 to 2^73
2024-07-29yuriy_5-1NF-PM1
B1=14056184, B2=125644559040
2021-08-19LaurVNF-PM1
B1=6189107, B2=185673210
2018-02-05Oliver KruseNF
no factor from 2^67 to 2^72
2018-01-21ramgeisNF
no factor from 2^68 to 2^69
2018-01-21ramgeisNF
no factor from 2^67 to 2^68
2016-02-08VictordeHollanderNF
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
2012-04-01James HeinrichNF-PM1
B1=225000, B2=5400000, E=6