is 2 17504143 - 1
has 5269273 decimal digits
takes 9.968 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
Actual273109.279565.7534%----109.279565.7534%0.0000%
PrimeNet2650.416861.5385%8000024000000.17044.5488%0.587263.2880%1.7495%
GPU722696.820563.7681%12000034000000.24663.3524%7.067164.9827%1.2146%
Difference+4+102.4590+1.9853%-120000-3400000-0.2466-3.3524%+102.2124+0.7707%+0.7707%

Known prime factors (2 factors, 87.7 bits, 0.00050106% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1750414368640046194491342.642196068
22 × 3 × 16339
-4163394.817e-80.00070.0014
17504143367796002467431445.0641050597
33 × 167 × 233
2008-09-081672333.754e-70.00010.0003

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
175041432524553459951315322167046072787.706
P-1 results:
No P-1 results for M17504143


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-08T13:33:00Will EdgingtonManual testing??45.064141.07632e-720.722.23786e-7
2020-03-09T14:34:25Christoph ZengerManual testing246264--0.203--
2022-03-28T06:01:35LordJuliusManual testing264265--0.213--
2020-03-09T14:34:25Christoph ZengerManual testing265273--108.9--


ECM factoring results:

Old Calculation Method

Total ECM effort:5.626 GHz-days
Estimated T-Level:0.250
DigitsB1CurvesCompleteFacMiss
20110005 / 1000.05095.099%
25500005 / 2800.01898.227%

New Calculation Method

Total ECM effort:5.626 GHz-days
Estimated T-Level:0.250
DigitsB1CompleteFacMiss
20110000.18283.319%
25500000.01898.240%
302500000.00199.879%


ECM Summary

B1B2factorcurvesGHz-days
50000500000032.598
500001000000011.297
1000001000000011.732


Lucas-Lehmer results:
No L-L results for M17504143


PRP results:
No PRP results for M17504143


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
TF factor-bounds graph:
273
265
264
2
240
250
260
270
280
290
2100
Last modified: 2022-03-28T06:01:35+00:00