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
804317Factored
FactorDigitsBitsDate
4472541109999073321232072478.62017-11-03 04:32:57
ECM
DigitsB1Curves
2550000280 / 280
30250000199 / 640
Estimated T-Level: 26.6
TF below 2^83 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski171D0
Verified (Factored)Paul Victor Novarese38C013AF5538571D0
Verified (Factored)Dennis Cok38C013AF5538571D0
Verified (Factored)2015-04-11MadPoo38C013AF5538571D219429
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-11-03Oliver KruseAA976861B7E2FB61170665753
Verified2017-11-03kkmrkkblmbrbkAA976861B7E2FB61113502153
History
DateUserTypeResult
2021-09-13gLaussNF-PP1
Start=2/7, B1=5000000, B2=365000000
2017-11-03kkmrkkblmbrbkC-PRP
M804317/447254110999907332123207 : AA976861B7E2FB61
PRP: Verified
PRP without proof (small exponent)
2017-11-03Oliver KruseC-PRP
M804317/447254110999907332123207 : AA976861B7E2FB61
PRP: Verified
PRP without proof (small exponent)
2017-11-03Smok_bmv F-ECM
Factor: 447254110999907332123207 / (ECM curve 122, B1=250000, B2=25000000)
2017-06-20Smok_bmv NF
no factor from 2^67 to 2^68
2017-06-19Smok_bmv NF
no factor from 2^66 to 2^67
2017-06-19Smok_bmv NF
no factor from 2^65 to 2^66
2016-03-01lycornNF
no factor from 2^64 to 2^65
2015-11-25Sid & AndyNF-PM1
B1=8043170, B2=241295100, E=12
2015-09-26Gordon SpenceNF
no factor from 2^63 to 2^64
2015-09-26Gordon SpenceNF
no factor from 2^62 to 2^63
2015-04-11MadPooC-LL
38C013AF5538571D
2015-01-15snme2pm1NF
no factor from 2^61 to 2^62
2013-10-25David CampeauNF-PM1
B1=1650000, B2=56100000, E=12
2012-08-01JossNF-PM1
B1=1608634
2010-05-19Architects CubedNF
no factor from 2^60 to 2^61
2008-10-13Sturle SundeNF
no factor from 2^59 to 2^60
2008-10-13Sturle SundeNF
no factor from 2^58 to 2^59