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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
15684127Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 269
P-1
B1 = 1500000
B2 = 672969570
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2002-07-27palle fernandez78B9D26F3E273B591270184
Verified2005-11-27Penny Black S78B9D26F3E273B5910828808
History
DateUserTypeResult
2024-09-12Sid & AndyNF-PM1
B1=1500000, B2=672969570
2022-04-01TheJudgerNF
no factor from 2^73 to 2^74
2022-04-01TheJudgerNF
no factor from 2^72 to 2^73
2021-09-18-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-07SRBaseNF
no factor from 2^70 to 2^71
2021-05-27lycornNF
no factor from 2^69 to 2^70
2018-02-11ramgeisNF
no factor from 2^68 to 2^69
2018-02-11ramgeisNF
no factor from 2^67 to 2^68
2016-07-30ThaNF-PM1
B1=300000, B2=6000000, E=12
2013-12-31NesowaNF
no factor from 2^66 to 2^67
2013-09-12David CampeauNF
no factor from 2^65 to 2^66