Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
6163Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
591649619.2old
6170870093085777840792169.1old
114215122522923479135354237112993.2old
3163426589413094102060293301041695135114.62016-11-21 04:16:25
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001429 / 9201
Estimated T-Level: 40.8
TF below 2^130 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-20kkmrkkblmbrbkB8CF24806A41D89B4013
Verified2017-09-25George WoltmanB8CF24806A41D89B466213
Verified2017-10-02kkmrkkblmbrbkB8CF24806A41D89B4013
Verified2020-04-17Oliver Kruse3710DF041C3FA39B4154953
Verified2024-02-03Wentao Huang3710DF041C3FA39B4329053
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2024-10-21Denial140factor ECM small0.00 % 2024-10-24
2024-10-21Denial140factor ECM small0.00 % 2024-10-24
2024-10-21Denial140factor ECM small0.00 % 2024-10-24
2024-10-21Denial140factor ECM small0.00 % 2024-10-24
2024-10-21Denial140factor ECM small0.00 % 2024-10-24
2024-10-21Denial140factor ECM small0.00 % 2024-10-24
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M6163/591649/617087009308577784079/11421512252292347913535423711/31634265894130941020602933010416951 : 3710DF041C3FA39B
PRP: Verified
PRP without proof (small exponent)
2023-07-30-Anonymous-NF-PM1
B1=40000000000, B2=169617550478676300
2021-07-09ViliamFNF-PM1
B1=1000000000, B2=201000000000
2020-04-17Oliver KruseC-PRP
M6163/591649/617087009308577784079/11421512252292347913535423711/31634265894130941020602933010416951 : 3710DF041C3FA39B
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M6163/591649/617087009308577784079/11421512252292347913535423711/31634265894130941020602933010416951 : B8CF24806A41D89B
PRP: Verified
PRP without proof (not generated)
2017-09-25George WoltmanC-PRP
M6163/known_factors : B8CF24806A41D89B
PRP: Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbkC-PRP
M6163/591649/617087009308577784079/11421512252292347913535423711/31634265894130941020602933010416951 : B8CF24806A41D89B
PRP: Verified
PRP without proof (not generated)
2016-11-21kkmrkkblmbrbkF-ECM
Factor: 31634265894130941020602933010416951 / (ECM curve 479, B1=3000000, B2=300000000)