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
309851Factored
FactorDigitsBitsDate
4562132949811341970297446732788.62009-03-22 05:25:45
ECM
DigitsB1Curves
2550000280 / 280
30250000348 / 640
Estimated T-Level: 27.7
TF below 2^87 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski4FD70
Verified (Factored)Unknown4FD70
Verified (Factored)Klaus Kastens32DF5D35B50ECFD70
Verified (Factored)Eivind Triel32DF5D35B50ECFD7197105
Verified (Factored)2001-12-08Dennis Pope32DF5D35B50ECFD7244543
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-24Oliver KruseF3482782130D3A901013
Verified2017-10-12Oliver KruseF3482782130D3A90115947613
Verified2017-12-11ATHF3482782130D3A9011140713
Unverified (Reliable)2020-04-18Oliver Kruse32877AF7984040__115896153
History
DateUserTypeResult
2024-02-24Denial140NF-PM1
B1=10000000, B2=197616018600
2024-02-22Denial140NF-PM1
B1=10000000
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-04-18Oliver KruseC-PRP
M309851/456213294981134197029744673 : 32877AF7984040__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-12-11ATHC-PRP
M309851/456213294981134197029744673 : F3482782130D3A90
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-10-12Oliver KruseC-PRP
M309851/456213294981134197029744673 : F3482782130D3A90
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-09-24Oliver KruseC-PRP
M309851/456213294981134197029744673 : F3482782130D3A90
PRP: Unverified (Reliable)
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M309851/456213294981134197029744673 : F3482782130D3A90
PRP without proof (not generated)
2009-03-22Carsten KossendeyF-ECM
Factor: 456213294981134197029744673
2009-01-25Sturle SundeNF
no factor from 2^59 to 2^60
2009-01-01Sturle SundeNF
no factor from 2^58 to 2^59
2008-11-18GrunwalderGIMPNF-PM1
B1=2000000, B2=200000000, E=12