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
1135903Factored
FactorDigitsBitsDate
18174449824.1old
384571319691135.22008-07-15 09:55:43
73261284701721663730597212582.62018-06-15 13:09:57
84783824144622319630695912582.82020-08-21 10:51:33
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)2017-09-29Oliver Kruse444C0F14115066E02013
Verified (Factored)2017-10-17Oliver Kruse444C0F14115066E0250089813
Verified (Factored)2018-01-05ATH444C0F14115066E0279368913
Verified (Factored)2018-06-18_p95holder_9F3E5887E3469B03334861253
Verified (Factored)2018-06-18ATH9F3E5887E3469B03344874353
Verified2020-08-21ANONYMOUS9F3E5887E3469B03459899253
Verified2020-08-24Bommer9F3E5887E3469B03464012553
History
DateUserTypeResult
2020-09-02Ben DeloCERT
PRP Certification
Proof certified good
2020-08-24BommerC-PRP
M1135903/18174449/38457131969/7326128470172166373059721/8478382414462231963069591 : 9F3E5887E3469B03
PRP proof power = 6
PRP: Verified
Proof certified good
2020-08-21ANONYMOUSC-PRP
M1135903/18174449/38457131969/7326128470172166373059721/8478382414462231963069591 : 9F3E5887E3469B03
PRP: Verified
PRP without proof (not generated)
2020-08-21TJAOIF-ECM
Factor: 8478382414462231963069591 / (ECM curve 15, B1=250000, B2=25000000)
2018-06-18ATHC-PRP
M1135903/18174449/38457131969/7326128470172166373059721 : 9F3E5887E3469B03
PRP: Verified
PRP without proof (not generated)
2018-06-18_p95holder_C-PRP
M1135903/18174449/38457131969/7326128470172166373059721 : 9F3E5887E3469B03
PRP: Verified
PRP without proof (not generated)
2018-06-15TJAOIF-ECM
Factor: 7326128470172166373059721 / (ECM curve 41, B1=50000, B2=5000000)
2018-01-05ATHC-PRP
M1135903/18174449/38457131969 : 444C0F14115066E0
PRP: Verified
PRP without proof (not generated)
2017-10-17Oliver KruseC-PRP
M1135903/18174449/38457131969 : 444C0F14115066E0
PRP: Verified
PRP without proof (not generated)
2017-09-29Oliver KruseC-PRP
M1135903/18174449/38457131969 : 444C0F14115066E0
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=300000, B2=10000000, E=12
2008-07-15J FeitsmaF
Factor: 38457131969