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
1541539TF
No factors below 268
TF target 261
TF below 2^81 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 21300000
B2 = 81923311470
ECM
DigitsB1Curves
2550000280 / 280
30250000105 / 640
Estimated T-Level: 25.8 ⓘ
LL
StatusDateUserResidueShift
VerifiedLee Middle School88A73BCCB4B827FD0
VerifiedTom Cage88A73BCCB4B827FD0
Bad1998-10-25Brian J. Beesley4A892D1CCC0A78AF384709
Verified1999-07-27Ethan O'Connor88A73BCCB4B827FD1258846
Verified2016-06-02MadPoo88A73BCCB4B827FD1386993
History
DateUserTypeResult
2023-09-29Sid & AndyNF-PM1
B1=21300000, B2=81923311470
2023-06-29JossNF-PM1
B1=10001000, B2=9816975630
2023-02-22JossNF-PM1
B1=10001000, B2=3563469000
2022-12-23JossNF-PM1
B1=10001000, B2=1200523170
2018-06-06ramgeisNF
no factor from 2^67 to 2^68
2018-02-12TJAOINF
no factor from 2^66 to 2^67
2016-06-02MadPooC-LL
88A73BCCB4B827FD
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-10-11ramgeisNF
no factor from 2^65 to 2^66
2015-03-02VictordeHollanderNF-PM1
B1=10000000, B2=200000000, E=12
2015-02-11snme2pm1NF
no factor from 2^64 to 2^65
2015-02-11snme2pm1NF
no factor from 2^63 to 2^64
2014-10-17JossNF-PM1
B1=214344
2014-06-24JossNF-PM1
B1=172708
2010-05-17GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-27Architects CubedNF
no factor from 2^60 to 2^61