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

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Exponent Range:










MnStatusDetails
69389Factored
FactorDigitsBitsDate
13739023823.7old
15659709531030.52008-08-26 20:09:13
2268699180565191893512167.62010-04-25 18:34:44
331206218568122753068089740560573078067940131.32022-10-02 15:44:46
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001038 / 1566
Estimated T-Level: 33.3
TF below 2^106 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-21Oliver Kruse054DEC3DD42619583013
Verified (Factored)2017-10-02kkmrkkblmbrbk054DEC3DD42619583013
Verified (Factored)2017-12-07ATH054DEC3DD426195831391013
Verified (Factored)2020-04-17Oliver KruseFDC5C718D19A1B693288353
Verified2022-10-02George WoltmanFDC5C718D19A1B6943065853
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2024-03-19masserfactor ECM small0.00 % 2024-03-28
P-1 factors
DateFactorB1B2
2022-10-023312062185681227530680897405605730780679100000000095494774354980
History
DateUserTypeResult
2024-02-05masserNF-PP1
Start=131/43, B1=25000000, B2=1775000000
2024-02-05masserNF-PP1
Start=6/5, B1=25000000, B2=1775000000
2024-02-03masserNF-PP1
Start=2/7, B1=25000000, B2=1775000000
2022-10-02George WoltmanC-PRP
M69389/13739023/1565970953/226869918056519189351/3312062185681227530680897405605730780679 : FDC5C718D19A1B69
PRP: Verified
PRP without proof (small exponent)
2022-10-02George WoltmanF-PM1
Factor: 3312062185681227530680897405605730780679 / (P-1, B1=1000000000, B2=95494774354980)
2022-09-21George WoltmanNF-PM1
B1=1000000000
2020-04-17Oliver KruseC-PRP
M69389/13739023/1565970953/226869918056519189351 : FDC5C718D19A1B69
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M69389/13739023/1565970953/226869918056519189351 : 054DEC3DD4261958
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M69389/13739023/1565970953/226869918056519189351 : 054DEC3DD4261958
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M69389/known_factors : 054DEC3DD4261958
PRP without proof (not generated)
2016-11-14kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2010-04-25James HintzF-ECM
Factor: 226869918056519189351
2008-08-26-Anonymous-F
Factor: 1565970953