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
19150073Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 1000000
B2 = 595170510
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2003-05-11Jason FarmerB0322016EEC6DA135155927
Verified2007-09-28John SnowB0322016EEC6DA1316985016
History
DateUserTypeResult
2024-09-12Sid & AndyNF-PM1
B1=1000000, B2=595170510
2021-11-05-Anonymous-NF
no factor from 2^72 to 2^73
2021-10-01-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-12SRBaseNF
no factor from 2^70 to 2^71
2020-01-01lycornNF
no factor from 2^69 to 2^70
2017-11-26ramgeisNF
no factor from 2^68 to 2^69
2014-07-06NesowaNF
no factor from 2^67 to 2^68
2014-07-06NesowaNF
no factor from 2^66 to 2^67