is 2 1066297 - 1
has 320988 decimal digits
takes 0.032 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26727.866568.6567 %1000000011100000003.005411.8199 %30.871872.3615 %
Target2600.144065.0000 %4500950000.00040.6357 %0.144465.2225 %
Difference+7+27.7224+3.6567 %+9995500+1109905000+3.0050+11.1843%+30.7274+7.1390 %

Known prime factors (2 factors, 138.0 bits, 0.01293890% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10662971072524174491236.64250292
22 × 32 × 11 × 127
-111271.619e-87.444e-79.621e-7
1066297317567667786858337768189157656931101.3251489114513999656464231772
22 × 33 × 13788097351848670965109
2020-04-2727137880973518486709651091.495e+113.228e+136.030e+13

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-09-01ViliamF3100000001110000000
skipped known factor: 107252417449
--3.11018.519%


Trial Factoring results:
5758596061626364656667
No TF results for M1066297


ECM factoring results:
Total ECM effort:17.561 GHz-days
Estimated T-Level:25.658
DigitsB1CompleteFacMiss
201100014.8080.000%
25500001.62019.795%
302500000.13287.678%
3510000000.00999.129%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002819.85
25000025000000111.928
25000025000000335.784


Lucas-Lehmer results:
No L-L results for M1066297


PRP results:
dateuseridcompidcofactorsres64
2017-09-28Oliver KruseGTX-2
107252417449
2A9A2A1C3A2570A8
2017-10-16Oliver KruseThreadripper-PC
107252417449
2A9A2A1C3A2570A8
2017-12-31ATHec2-1xh
107252417449
2A9A2A1C3A2570A8
2020-04-27M Millercruncher
107252417449
3175676677868583377681891576569
FF892178682FFD6F
2020-04-28RuzovejMasa_notebook
107252417449
3175676677868583377681891576569
FF892178682FFD6F


CERT results:
No CERT results for M1066297


P-1 factor-bounds graph:
B1 = 10000000, B2 = 1110000000 (P-1 stage 2)
B1 = 10000000 (P-1 stage 1)
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TF factor-bounds graph:
this exponent TF target: 60
TF double-checked to: 67
ECM T-Level=25.66 ~= 69-bit
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JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00