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
1176403Factored
FactorDigitsBitsDate
11764031823.5old
423505081928.72008-07-15 09:56:15
286943231811291444.72014-01-10 14:39:46
4703274063733931548.72014-04-11 11:46:37
616673411820237047694913372685.72018-06-08 13:19:12
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-05Oliver Kruse08B6AF50E05F171D4013
Verified (Factored)2017-10-17Oliver Kruse08B6AF50E05F171D445784113
Verified (Factored)2018-01-02ATH08B6AF50E05F171D412263613
Verified2018-06-10Daniil TsarkovE72982D6C75F057C568256253
Verified2018-06-11Chang Chia-TcheE72982D6C75F057C5103561253
History
DateUserTypeResult
2018-06-11Chang Chia-TcheC-PRP
M1176403/11764031/423505081/28694323181129/470327406373393/61667341182023704769491337 : E72982D6C75F057C
PRP: Verified
PRP without proof (not generated)
2018-06-10Daniil TsarkovC-PRP
M1176403/11764031/423505081/28694323181129/470327406373393/61667341182023704769491337 : E72982D6C75F057C
PRP: Verified
PRP without proof (not generated)
2018-06-08TJAOIF-ECM
Factor: 61667341182023704769491337 / (ECM curve 103, B1=50000, B2=5000000)
2018-01-02ATHC-PRP
M1176403/11764031/423505081/28694323181129/470327406373393 : 08B6AF50E05F171D
PRP: Verified
PRP without proof (not generated)
2017-10-17Oliver KruseC-PRP
M1176403/11764031/423505081/28694323181129/470327406373393 : 08B6AF50E05F171D
PRP: Verified
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M1176403/11764031/423505081/28694323181129/470327406373393 : 08B6AF50E05F171D
PRP: Verified
PRP without proof (not generated)
2017-09-29Oliver KruseC-PRP
M1176403/11764031/423505081/28694323181129/470327406373393 : 08B6AF50E05F171D
PRP without proof (not generated)
2014-04-11TJAOIF
Factor: 470327406373393
2014-01-10TJAOIF
Factor: 28694323181129
2008-07-15J FeitsmaF
Factor: 423505081