is 2 4327 - 1
has 1303 decimal digits
takes 0.000 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actualunknown10000000002010000000001.048456.0272%1.048456.0272%-11.4728%
PrimeNet2400.000067.5000%500100000.00002.4403%0.000068.2931%0.7931%
GPU722440.000570.4545%500100000.00000.9734%0.000570.7421%0.2876%
Difference-44-0.0005-70.4545%+999999500+200999990000+1.0484+55.0539%+1.0479-14.7149%-14.7149%

Known prime factors (4 factors, 264.2 bits, 6.10547884% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4327946574521929.818109380
22 × 3 × 5 × 1823
-518232.769e-89.170e-91.634e-8
43273545367527712491548.33340967963112
23 × 3 × 67 × 643 × 39623
-643396230.01292.438e-73.553e-7
43271615104374096755031857.16418663096534513
3 × 6221032178171
-362210321781716.773629.87055.789
432762131616586225452358260372141509583203139128.86971795258361711870069632969888501945
5 × 137 × 1733 × 461443 × 131065553611884047254963
2020-09-304614431310655536118840472549634.298e+136.293e+111.175e+12

11 Composite Factors:
exponentprime factorscomposite factordigitsbits*
43273355954569313404447467292478.151
43271528816649275640700176590632786.983
43275726138601789040954936107801324732105.497
43275420216904168071184968028827643291067968741135.315
432758812205209062012764028632153131177937384028215148158.687
432722027941588908646979338166615218045759467954867007
6719
54177.202
432710034904571811522268070368330630692784860666432750
3436593
57186.033
432720851088258137181427225121960818212975324460593087
4057320676599
63207.020
432794987849883432017931795424968603176507276413803214
352618872846953
65215.851
432735577424812594179772024064331124714360849266292537
373934442863904914657
71234.366
432733676683850394850485091567894707561887382715394060
010606593139302662780995654297
80264.184
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-07-05T18:34:56ViliamF31000000000201000000000---1.048--48.016%


Trial Factoring results:
Exponent "4327" not found


ECM factoring results:

Old Calculation Method

Total ECM effort:20.529 GHz-days
Estimated T-Level:33.481
DigitsB1CurvesCompleteFacMiss
20110001204 / 10012.0400.001%
25500001204 / 2804.3001.346%
302500001204 / 6401.88115.218%
3510000001100 / 15800.69649.836%
4030000001100 / 47000.23479.131%
4511000000315 / 97000.03296.805%
5044000000201 / 171000.01298.831%

New Calculation Method

Total ECM effort:20.529 GHz-days
Estimated T-Level:33.481
DigitsB1CompleteFacMiss
2011000263.0670.000%
255000074.3440.000%
3025000017.1490.000%
3510000003.4113.301%
4030000000.59755.058%
45110000000.09690.886%
50440000000.01498.606%
551100000000.00299.807%


ECM Summary

B1B2factorcurvesGHz-days
30000003000000007852.986
11000000110000001040.984
1100000011000000001141.590
44000000440000000020011.16
11000000090051415378213.809


Lucas-Lehmer results:
Exponent "4327" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-21T18:33:50Oliver KruseOliver-PC08ECBE5F22C5E8__?
2017-09-21T19:21:11Oliver KruseManual testing08ECBE5F22C5E8__?
2017-10-02T09:55:58kkmrkkblmbrbkManual testing
946574521
354536752771249
161510437409675503
08ECBE5F22C5E8__no
2017-12-07T02:44:28ATHManual testing
946574521
354536752771249
161510437409675503
08ECBE5F22C5E8__no
2020-04-17T12:32:23Oliver KruseIOS-1
946574521
354536752771249
161510437409675503
56BC5AF53E8E68__no
2020-10-01T15:22:06mnd9vv
946574521
354536752771249
161510437409675503
621316165862254523582603721415095832031
56BC5AF53E8E68EEno
2020-10-03T00:39:41fre_gamesgpu
946574521
354536752771249
161510437409675503
621316165862254523582603721415095832031
56BC5AF53E8E68EEno


P-1 factor-bounds graph:
B1 = 1000000000, B2 = 201000000000 (P-1 stage 2)
B1 = 1000000000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-07-05T18:34:56+00:00