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
2203393Factored
FactorDigitsBitsDate
50103903325583315269932692392892.02021-03-02 06:12:04
ECM
DigitsB1Curves
2550000161 / 280
Estimated T-Level: 22.9
TF below 2^71 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Chris Duncombe RaeC7DCAA92E1883A120
Verified (Factored)1999-02-21Justin SantamariaC7DCAA92E1883A12727052
Verified (Factored)2018-04-16kkmrkkblmbrbkC7DCAA92E1883A12886386
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-03-03M89093877BADCDCF909152CD1206427953
History
DateUserTypeResult
2021-03-03lobsterfordinnerCERT
PRP Certification
Proof certified good
2021-03-03M8909387C-PRP
M2203393/5010390332558331526993269239 : 7BADCDCF909152CD
PRP proof power = 7
PRP: Verified
Proof certified good
2021-03-02Alexander DubrovinF-ECM
Factor: 5010390332558331526993269239 / (ECM curve 1, B1=250000, B2=25000000)
2019-12-05mikrNF-PM1
B1=5000000, B2=200000000, E=12
2019-05-13TJAOINF
no factor from 2^67 to 2^68
2018-04-16kkmrkkblmbrbkC-LL
C7DCAA92E1883A12
2016-12-12Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-12-22Alexander DubrovinNF-PM1
B1=2000000, B2=200000000, E=12
2015-12-19Alexander DubrovinNF-PM1
B1=2000000, B2=120000000, E=12
2015-12-12Alexander DubrovinNF-PM1
B1=2000000, B2=91000000, E=12
2015-11-21Alexander DubrovinNF-PM1
B1=1000000, B2=90000000, E=12
2015-11-21Alexander DubrovinNF-PM1
B1=1000000, B2=70000000, E=6
2015-11-21Alexander DubrovinNF-PM1
B1=1000000, B2=65000000, E=6
2015-11-21Alexander DubrovinNF-PM1
B1=1000000, B2=60000000, E=12
2015-11-21Alexander DubrovinNF-PM1
B1=1000000, B2=50000000, E=6
2015-11-19Alexander DubrovinNF-PM1
B1=1000000, B2=45000000, E=12
2015-11-19Alexander DubrovinNF-PM1
B1=1000000, B2=35000000, E=6
2015-11-19Alexander DubrovinNF-PM1
B1=1000000, B2=30000000, E=12
2015-11-19Alexander DubrovinNF-PM1
B1=1000000, B2=20000000, E=6
2015-11-17Alexander DubrovinNF-PM1
B1=1000000, B2=14000000, E=6
2015-11-17Alexander DubrovinNF-PM1
B1=1000000, B2=10000000, E=6
2015-11-16Alexander DubrovinNF-PM1
B1=1000000, B2=7000000, E=6
2015-11-12Alexander DubrovinNF-PM1
B1=1000000, B2=2500000, E=6
2015-10-21ramgeisNF
no factor from 2^65 to 2^66
2015-03-03VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-03VictordeHollanderNF
no factor from 2^63 to 2^64
2014-10-17JossNF-PM1
B1=148260
2014-06-24JossNF-PM1
B1=119130
2013-12-04LaurVNF
no factor from 2^62 to 2^63
2011-01-10markrNF-PM1
B1=90000, B2=1642500, E=6
2010-11-09JossNF-PM1
B1=30000
2010-11-05JossNF-PM1
B1=15000
2009-01-07Sturle SundeNF
no factor from 2^61 to 2^62
2009-01-02Sturle SundeNF
no factor from 2^60 to 2^61