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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
7309651Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 272
TF target 267
P-1
B1 = 3300000
B2 = 8474534250
ECM
DigitsB1Curves
2550000157 / 280
Estimated T-Level: 22.8 ⓘ
LL
StatusDateUserResidueShift
Verified1999-11-04Cornelis ZijlstraC6824FFC19DEBB184189283
Verified2002-05-25Darek MihockaC6824FFC19DEBB182321133
History
DateUserTypeResult
2023-02-03DRobinsonPENF-PM1
B1=3300000, B2=8474534250
2022-01-29Oliver KruseNF-PM1
B1=500000, B2=1041945450
2021-09-28SRBaseNF
no factor from 2^71 to 2^72
2021-08-18SRBaseNF
no factor from 2^70 to 2^71
2020-05-24GdSNF
no factor from 2^69 to 2^70
2020-05-24GdSNF
no factor from 2^68 to 2^69
2018-08-05ramgeisNF
no factor from 2^67 to 2^68
2016-10-04Gordon SpenceNF
no factor from 2^66 to 2^67
2016-07-30Squeeky_SquirrelNF-PM1
B1=225000, B2=5681250, E=12
2015-06-21VictordeHollanderNF
no factor from 2^65 to 2^66
2013-11-18David CampeauNF
no factor from 2^64 to 2^65
2012-09-10NesowaNF-PM1
B1=80000, B2=1380000, E=6
2012-04-04David CampeauNF
no factor from 2^63 to 2^64