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
6173Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
37039515.2old
792843405087030464052668486172996.0old
10282868381372217561959740248733199.7old
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
Verified2017-09-21Oliver KruseD6923710B906FF263013
Verified2017-10-02kkmrkkblmbrbkD6923710B906FF263013
Verified2017-12-07ATHD6923710B906FF263415913
Verified2020-04-17Oliver KruseBD9C7DA4F9E0D7673480453
Verified2024-02-03Wentao HuangBD9C7DA4F9E0D767383853
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
M6173/37039/79284340508703046405266848617/1028286838137221756195974024873 : BD9C7DA4F9E0D767
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
M6173/37039/79284340508703046405266848617/1028286838137221756195974024873 : BD9C7DA4F9E0D767
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M6173/37039/79284340508703046405266848617/1028286838137221756195974024873 : D6923710B906FF26
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M6173/37039/79284340508703046405266848617/1028286838137221756195974024873 : D6923710B906FF26
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M6173/known_factors : D6923710B906FF26
PRP without proof (not generated)