is 2 11709683 - 1
has 3524966 decimal digits
takes 4.508 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L2BDC9AA81550ED66double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26910.195665.2174 %750000200000001.00425.7546 %11.199767.2190 %
Target2685.090264.7059 %80000100000000.34642.9303 %5.436665.7401 %
Difference+1+5.1053+0.5115 %+670000+10000000+0.6578+2.8244%+5.7631+1.4789 %

Known prime factors (1 factor, 71.5 bits, 0.00061054% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1170968333222906983736597161992271.493141860829980353
11 × 787 × 92681 × 176809
2019-07-019268117680943.0640.05430.1053

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2000-12-07ANONYMOUSv4_computers1350001923750--0.1303.176%
2019-07-01riccardo ubertiNomad2C43000043000012271.4930.2402.198%
2021-09-28riccardo ubertiColab_noGPU147500002000000012
skipped known factor: 3322290698373659716199
--1.0046.307%


Trial Factoring results:
57585960616263646566676869
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2000-02-01ANONYMOUSv4_computers212640.168
2013-10-29lycornManual testing2642650.319
2013-11-26NesowaManual testing2652660.638
2016-02-08VictordeHollanderManual testing2662671.276
2018-01-18ramgeisManual testing2672697.658


ECM factoring results:
Total ECM effort:12.502 GHz-days
Estimated T-Level:2.885
DigitsB1CompleteFacMiss
20110000.57756.162%
25500000.05594.608%
302500000.00499.643%


ECM Summary

B1B2factorcurvesGHz-days
50000500000021.171
50000144000001011.33


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2001-02-18ANONYMOUSv4_computers2BDC9AA81550ED664.508
2005-03-20JCv4_computers2BDC9AA81550ED664.508


PRP results:
dateuseridcompidcofactorsres64
2019-07-03riccardo ubertiNomad2C
3322290698373659716199
29265CDAE91AB10A
2019-08-15kkmrkkblmbrbkc5.large
3322290698373659716199
29265CDAE91AB10A


CERT results:
No CERT results for M11709683


P-1 factor-bounds graph:
B1 = 750000, B2 = 20000000 (P-1 stage 2)
B1 = 750000 (P-1 stage 1)
B1 = 430000 (P-1 stage 1)
B1 = 135000, B2 = 1923750 (P-1 stage 2)
B1 = 135000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
269
267
266
265
264
this exponent TF target: 68
TF double-checked to: 67
ECM T-Level=2.88 ~= -7-bit
250
260
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280
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Last modified: 2024-03-13T02:15:48+00:00