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
2311843Factored
FactorDigitsBitsDate
227202936459131444.4old
1339017025449713511856.92015-05-08 11:22:28
47686324936707267940492272.02022-09-12 15:50:25
ECM
DigitsB1Curves
2550000108 / 280
Estimated T-Level: 21.9
TF below 2^68 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-11Oliver KruseCD6DA99BEE4B51DD2013
Verified (Factored)2017-11-23kkmrkkblmbrbkCD6DA99BEE4B51DD226660313
Verified2022-09-15_p95holder_AA896733616804913134005353
Verified2022-09-17ATHAA89673361680491373319653
History
DateUserTypeResult
2022-09-17curtiscCERT
PRP Certification
Proof certified good
2022-09-17ATHC-PRP
M2311843/22720293645913/133901702544971351/4768632493670726794049 : AA89673361680491
PRP proof power = 7
PRP: Verified
Proof certified good
2022-09-15_p95holder_C-PRP
M2311843/22720293645913/133901702544971351/4768632493670726794049 : AA89673361680491
PRP: Verified
PRP without proof (not generated)
2022-09-12_p95holder_F-ECM
Factor: 4768632493670726794049 / (ECM curve 2, B1=50000, B2=5000000)
2021-05-13ViliamFNF-PM1
B1=5000000, B2=505000000
2018-02-26alpertronNF-PM1
B1=500000, B2=15000000, E=12
2017-11-23kkmrkkblmbrbkC-PRP
M2311843/22720293645913/133901702544971351 : CD6DA99BEE4B51DD
PRP: Verified
PRP without proof (not generated)
2017-10-11Oliver KruseC-PRP
M2311843/22720293645913/133901702544971351 : CD6DA99BEE4B51DD
PRP: Verified
PRP without proof (not generated)
2015-05-08TJAOIF
Factor: 133901702544971351 / TF: 56-57