is 2 15168311 - 1
has 4566117 decimal digits
takes 7.607 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
Actual2683.929664.7059%----3.929664.7059%0.0000%
PrimeNet2650.481063.0769%6500020000000.12394.1496%0.604964.6091%1.5322%
GPU722697.870865.2174%10000026000000.17182.9982%8.042666.2603%1.0429%
Difference-1-3.9412-0.5115%-100000-2600000-0.1718-2.9982%-4.1130-1.5544%-1.5544%

Known prime factors (5 factors, 211.9 bits, 0.00139674% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1516831130336623824.8551
1
-111.474e-137.272e-71.480e-6
1516831144898200571032.064148
22 × 37
2008-09-084373.893e-114.216e-65.920e-6
1516831130310229138871341.46399913
11 × 31 × 293
2008-09-08312933.141e-83.292e-54.588e-5
15168311223989540865269771754.314738347008
211 × 7 × 51503
2014-11-162048515030.00020.00340.0038
151683116467077880684263671859.16621317725753
617 × 34550609
2015-10-30617345506090.00691.36932.5568

26 Composite Factors:
exponentprime factorscomposite factordigitsbits*
151683111362059784070475111856.919
15168311919509994429513836012066.317
15168311136087474719964364315592373.527
151683116795086257172782805786712479.169
15168311196189303577957488989386412684.020
151683111005672733135109348061776892786.378
1516831129036015978877259909842429192891.230
15168311678917430833661241543734295992995.777
151683114128434415601589493676706852573098.382
15168311196018612422457813824704125852931100.629
15168311305087145664994203559259062220424734111.233
151683111448557805234410095073772068360255935113.480
151683118808546701731753971579037637412253735116.084
15168311205960621473293567944242053496190417737120.632
151683115946542746043219431404237152543980756738125.483
1516831130482170980038824730265798848146766714339127.841
15168311880088297599660449746528466345002651615340132.693
1516831143944352031103725681647180425775311421825742138.335
151683116503763887665354031425498727170252041472586344145.544
15168311924726129242978351205150229450062710480667808946152.696
151683114390611899755359107450033318869773796078983683347154.943
1516831126698906890992703991970879642276533376053697131948157.547
1516831119730223314111819541288550747314379299713421541806
49
52170.399
1516831113319633794219212147232815213199111374692700622342
34959
55179.798
1516831119713057370024484713866777720379786960688448897456
0759481
57187.007
1516831159802758961180429353383930792796101384672129465689
06350968772663
64211.862
P-1 results:
No P-1 results for M15168311


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-08T11:25:00Will EdgingtonManual testing??41.463131.20938e-815.972.53887e-8
2008-09-08T11:25:00Will EdgingtonManual testing??32.064101.20839e-1215.972.53679e-12
2014-11-16T12:17:00TJAOIManual testing254255*54.314175.84914e-515.970.000
2015-10-30T12:18:24TJAOIManual testing259260*59.166180.00215.960.004
2022-08-10T19:28:55LordJuliusManual testing2126456.919180.00115.970.002
2022-08-10T19:28:55LordJuliusManual testing2126454.314170.00015.970.000
2022-08-10T19:28:55LordJuliusManual testing2126441.463133.14071e-815.976.59334e-8
2022-08-10T19:28:55LordJuliusManual testing2126424.85581.47381e-1315.973.09399e-13
2022-08-10T19:28:55LordJuliusManual testing2126432.064103.89297e-1115.978.17257e-11
2022-08-10T19:28:55LordJuliusManual testing2126459.166180.00715.960.014
2022-08-10T19:28:55LordJuliusManual testing264265--0.246--
2022-08-10T19:28:55LordJuliusManual testing265266--0.493--
2022-08-10T19:28:56LordJuliusManual testing266267--0.985--
2022-08-10T19:28:56LordJuliusManual testing267268--1.971--


ECM factoring results:
No ECM results for M15168311


Lucas-Lehmer results:
No L-L results for M15168311


PRP results:
No PRP results for M15168311


P-1 factor-bounds graph:
100
101
102
103
104
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
268
267
266
265
264
260
255
2
220
230
240
250
260
270
280
290
2100
Last modified: 2022-08-10T19:28:56+00:00