is 2 72661591 - 1
has 21873319 decimal digits
takes 194.269 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
Actual2670.408959.7015%----0.408959.7015%0.0000%
PrimeNet2703.288561.4286%320000140000004.13005.5361%7.418563.5639%2.1354%
GPU7227452.653263.5135%500000170000005.42344.1222%58.076665.0176%1.5040%
Difference-7-52.2443-3.8120%-500000-17000000-5.4234-4.1222%-57.6677-5.3161%-5.3161%

Known prime factors (2 factors, 99.2 bits, 0.00013658% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
72661591361854723191135.075249
3 × 83
-3836.639e-112.853e-53.219e-5
72661591207543267042327992172064.170142814975688
23 × 34 × 7 × 11 × 47 × 60899
2017-08-0381608990.06960.01320.0240

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
726615917510051144554984561986383742233099.245
P-1 results:
No P-1 results for M72661591


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2017-08-03T11:25:34TJAOIManual testing264265*64.170200.021399.00.042


ECM factoring results:
No ECM results for M72661591


Lucas-Lehmer results:
No L-L results for M72661591


PRP results:
No PRP results for M72661591


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
TF factor-bounds graph:
267
265
230
240
250
260
270
280
290
2100
Last modified: 2017-08-03T11:25:34+00:00