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
1940087TF
No factors below 268
TF target 262
TF below 2^81 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 50000000
B2 = 256102416570
ECM
DigitsB1Curves
2550000280 / 280
30250000131 / 640
Estimated T-Level: 26.0 ⓘ
LL
StatusDateUserResidueShift
VerifiedEkim SahinFB5DB52AE381DF620
Verified1999-03-26James ArnoldFB5DB52AE381DF62440141
Verified2015-06-27MadPooFB5DB52AE381DF62906412
History
DateUserTypeResult
2023-04-25RichD0NF-PM1
B1=50000000, B2=256102416570
2022-08-15masserNF-PP1
Start=2/7, B1=1500000, B2=54000000
2022-08-06Wentao HuangNF-PM1
B1=2330000, B2=9790191180
2019-05-11chuenkitNF
no factor from 2^67 to 2^68
2018-04-09JossNF-PM1
B1=1940087, B2=194008700, E=12
2018-03-02JossNF-PM1
B1=1940087, B2=120000000, E=12
2018-02-12JossNF-PM1
B1=1940087, B2=60000000, E=12
2018-01-27JossNF-PM1
B1=1940087, B2=30000000, E=12
2017-12-04TJAOINF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2015-09-05ramgeisNF
no factor from 2^65 to 2^66
2015-06-27MadPooC-LL
FB5DB52AE381DF62
2015-05-06lycornNF
no factor from 2^64 to 2^65
2015-05-06lycornNF
no factor from 2^63 to 2^64
2011-10-25kurlyNF-PM1
B1=1000000, B2=30000000, E=12
2011-08-27GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-01-29S485122NF
no factor from 2^60 to 2^61