is 2 3249583 - 1
has 978222 decimal digits
takes 0.277 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26936.739168.1159%11500001164471000.91726.9730%37.656370.3392%2.2233%
PrimeNet2600.047363.3333%140002600000.00342.7708%0.050664.3493%1.0160%
GPU722641.095365.6250%160002800000.00371.6548%1.099166.1938%0.5688%
Difference+5+35.6438+2.4909%+1134000+116167100+0.9134+5.3182%+36.5572+4.1454%+4.1454%

Known prime factors (3 factors, 163.0 bits, 0.00501704% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3249583767941454571136.16011816
23 × 7 × 211
-82114.388e-92.352e-62.702e-6
32495833222401927988171548.19549581776
24 × 37 × 61 × 1373
2014-03-276113732.292e-51.635e-51.728e-5
32495834833707075259819126554712478.67774374267025335545
33 × 5 × 550920496483967
2018-09-212755092049648396720,2453,704,2676,918,539

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
3249583247461602378840766355243692684.355
32495833712004042340325960721530910084524735114.838
324958315576146998647299499640849841213737780739126.873
32495831196156898273734700015662741965263132557732167279950163.033
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2020-08-03T14:28:36Jocelyn LaroucheManual testing32495832495836-
skipped known factor: 76794145457
skipped known factor: 322240192798817
--0.060--3.049%
2022-01-06T19:15:41Jocelyn LaroucheManual testing1150000116447100-
skipped known factor: 76794145457
skipped known factor: 322240192798817
--0.917--6.973%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-03-27T11:47:00TJAOIManual testing??48.195151.13794e-50.6092.50401e-5
2021-09-11T10:41:50Jocelyn LaroucheManual testing267268--9.198--
2021-11-14T23:34:16Jocelyn LaroucheManual testing268269--18.40--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.353 GHz-days
Estimated T-Level:0.150
DigitsB1CurvesCompleteFacMiss
20110003 / 1000.03097.030%
25500003 / 2800.01198.932%

New Calculation Method

Total ECM effort:0.353 GHz-days
Estimated T-Level:0.150
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.353


Lucas-Lehmer results:
No L-L results for M3249583


PRP results:
dateuseridcompidcofactorsres64PRP
2017-11-02T14:58:30Oliver KruseGTX-3
76794145457
322240192798817
C32D55120ECCC5__no
2017-12-13T19:45:55kkmrkkblmbrbkc4.xlarge
76794145457
322240192798817
C32D55120ECCC5__no
2018-09-21T09:15:00ATHec2-PRPCF
76794145457
322240192798817
483370707525981912655471
C32D55120ECCC5__no


P-1 factor-bounds graph:
B1 = 1150000, B2 = 116447100 (P-1 stage 2)
B1 = 1150000 (P-1 stage 1)
B1 = 324958, B2 = 3249583 (P-1 stage 2)
B1 = 324958 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-01-06T19:15:41+00:00