is 2 4217750179 - 1
has 1269669319 decimal digits
takes 1,141,575.092 GHz-days to do one PRP test
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2680.014152.9412%----0.014152.9412%0.0000%
PrimeNet28814,862.398663.6364%13000000120000000030,482.50995.5362%45,344.908565.6495%2.0131%
GPU72292237,798.378865.2174%20000000120000000033,080.03134.2576%270,878.410166.6983%1.4809%
Difference-24-237,798.3647-12.2762%-20000000-1200000000-33,080.0313-4.2576%-270,878.3959-13.7571%-13.7571%

Known prime factors (2 factors, 108.8 bits, 0.00000258% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
421775017911011786522336791649.968130541
31 × 4211
2013-02-203142113.222e-80.10150.1683
42177501795221839596313241211858.85761903140
22 × 3 × 5 × 13 × 19 × 4177
2020-01-121941771.301e-50.09640.1669

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
421775017957501782888486733804055308127115933108.825
P-1 results:
No P-1 results for M4217750179


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2020-01-12T23:22:35slaurpalvi2-rtx2226458.857180.001232,6790.002


ECM factoring results:
No ECM results for M4217750179


Lucas-Lehmer results:
No L-L results for M4217750179


PRP results:
No PRP results for M4217750179


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
TF factor-bounds graph:
268
264
240
250
260
270
280
290
2100
Last modified: 2020-01-12T23:22:35+00:00