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
314407Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 268
TF target 244
TF below 2^103 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 1000000000
B2 = 34113689159550
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000763 / 1566
Estimated T-Level: 32.4 ⓘ
LL
StatusDateUserResidueShift
VerifiedDavid Slowinski77960
VerifiedUnknown77960
VerifiedKlaus Kastens4A2E85BBF8EFF7960
VerifiedEivind Triel4A2E85BBF8EFF79632472
Verified2001-12-22Dennis Pope4A2E85BBF8EFF796248964
History
DateUserTypeResult
2023-09-05masserNF-PP1
Start=6/5, B1=20000000, B2=1580000000
2023-09-03masserNF-PP1
Start=161/67, B1=20000000, B2=1580000000
2022-10-29Oliver KruseNF-PM1
B1=1000000000, B2=34113689159550
2022-06-12Gordon SpenceNF
no factor from 2^67 to 2^68
2022-05-25LordJuliusNF
no factor from 2^66 to 2^67
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2021-05-11George WoltmanNF-PP1
Start=2/7, B1=30000000, B2=2220000000
2021-04-03SillerNF-PM1
B1=100000, B2=100000000, E=12
2019-11-27Gordon SpenceNF
no factor from 2^65 to 2^66
2018-01-22Gordon SpenceNF
no factor from 2^64 to 2^65
2016-06-08mikrNF-PM1
B1=60000000, B2=3000000000, E=12
2016-01-01Gordon SpenceNF
no factor from 2^63 to 2^64
2016-01-01Gordon SpenceNF
no factor from 2^62 to 2^63
2015-07-20NRNF
no factor from 2^61 to 2^62
2012-04-27David CampeauNF
no factor from 2^60 to 2^61
2012-01-29alpertronNF-PM1
B1=10000000, B2=200000000, E=12
2009-01-24Sturle SundeNF
no factor from 2^59 to 2^60
2008-12-31Sturle SundeNF
no factor from 2^58 to 2^59
2008-11-23GrunwalderGIMPNF-PM1
B1=2000000, B2=200000000, E=12