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
1263391TF
No factors below 268
TF target 260
TF below 2^81 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 36000000
B2 = 121104173190
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 640
Estimated T-Level: 25.8 ⓘ
LL
StatusDateUserResidueShift
VerifiedDavid Slowinski2780
VerifiedRobert Clark69E3CD213B3A82780
Verified2002-08-31Mark Outhier69E3CD213B3A8278923969
Verified2016-06-01MadPoo69E3CD213B3A8278203276
History
DateUserTypeResult
2022-05-19Sid & AndyNF-PM1
B1=36000000, B2=121104173190
2020-04-30Gordon SpenceNF
no factor from 2^67 to 2^68
2018-09-16YxinityNF
no factor from 2^66 to 2^67
2016-06-01MadPooC-LL
69E3CD213B3A8278
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-09-23ramgeisNF
no factor from 2^65 to 2^66
2015-04-09monstNF
no factor from 2^64 to 2^65
2015-04-08omylistNF
no factor from 2^63 to 2^64
2015-02-08mikrNF-PM1
B1=4218475, B2=156083565, E=12
2014-09-29JossNF-PM1
B1=250803
2012-10-11dbaughNF
no factor from 2^62 to 2^63
2011-05-09XyzzyNF
no factor from 2^61 to 2^62
2009-02-15Sturle SundeNF
no factor from 2^60 to 2^61