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
2050511Factored
FactorDigitsBitsDate
4101023722.0old
50688631931032.22008-07-15 07:49:46
48894066753598039533192272.12022-03-27 12:36:28
ECM
DigitsB1Curves
2550000280 / 280
30250000180 / 640
Estimated T-Level: 26.4 ⓘ
TF below 2^83 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-10-06Oliver KruseE890A8BA6AE122772013
Verified (Factored)2017-11-15kkmrkkblmbrbkE890A8BA6AE122772154700713
Verified2022-03-29_p95holder_EB3C6311FF8283703113187353
Verified2022-04-02Oliver KruseEB3C6311FF828370342149753
History
DateUserTypeResult
2022-04-02MichaelECERT
PRP Certification
Proof certified good
2022-04-02Oliver KruseC-PRP
M2050511/4101023/5068863193/4889406675359803953319 : EB3C6311FF828370
PRP proof power = 7
PRP: Verified
Proof certified good
2022-03-29_p95holder_C-PRP
M2050511/4101023/5068863193/4889406675359803953319 : EB3C6311FF828370
PRP: Verified
PRP without proof (not generated)
2022-03-27_p95holder_F-ECM
Factor: 4889406675359803953319 / (ECM curve 7, B1=50000, B2=5000000)
2017-11-15kkmrkkblmbrbkC-PRP
M2050511/4101023/5068863193 : E890A8BA6AE12277
PRP: Verified
PRP without proof (not generated)
2017-10-06Oliver KruseC-PRP
M2050511/4101023/5068863193 : E890A8BA6AE12277
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12
2008-07-15J FeitsmaF
Factor: 5068863193