is 2 18015253 - 1
has 5423132 decimal digits
takes 10.959 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
Actual2683.308663.2353%----3.308663.2353%0.0000%
PrimeNet2650.405061.5385%8000024000000.18214.5671%0.587063.2950%1.7566%
GPU722696.627063.7681%13000036000000.28143.4540%6.908465.0196%1.2514%
Difference-1-3.3184-0.5328%-130000-3600000-0.2814-3.4540%-3.5998-1.7843%-1.7843%

Known prime factors (2 factors, 100.6 bits, 0.00055846% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
18015253270949405131134.657752
24 × 47		-16471.477e-101.560e-52.872e-5
18015253713500198870517739612065.9521980266940660
22 × 3 × 5 × 269 × 122693119		2019-07-302691226931190.79285.896711.013

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
18015253193322454444103479442441738199331100.609
P-1 results:
No P-1 results for M18015253


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2019-07-30T08:18:25TJAOIManual testing265266*65.952200.38822.320.790
2022-06-24T02:43:30LordJuliusManual testing266267--0.830--
2022-04-11T17:13:51LordJuliusManual testing267268--1.659--


ECM factoring results:
No ECM results for M18015253


Lucas-Lehmer results:
No L-L results for M18015253


PRP results:
No PRP results for M18015253


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
268
267
266
230
240
250
260
270
280
290
2100
Last modified: 2022-06-24T02:43:30+00:00