is 2 400078639 - 1
has 120435671 decimal digits
takes 7,620.016 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
Actual2670.074356.7164%----0.074356.7164%0.0000%
PrimeNet27776.505462.3377%1500000100000000189.63445.8929%266.139864.5571%2.2194%
GPU722811,224.092664.1975%2400000100000000213.13574.3942%1,437.228365.7708%1.5732%
Difference-14-1,224.0183-7.4811%-2400000-100000000-213.1357-4.3942%-1,437.1540-9.0543%-9.0543%

Known prime factors (3 factors, 190.2 bits, 0.00004755% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
40007863911982683750622055691960.0561497541056
26 × 3 × 11 × 31 × 89 × 257
2009-06-09892570.00040.00270.0050
40007863976023239681098682411962.7219501037080
23 × 3 × 5 × 79175309
2016-09-308791753090.0028119.13222.50
4000786392010302390556152506072167.446251238405977
13 × 283 × 68289863
2022-08-05283682898630.1007102.76191.91

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
400078639910962438796347052676579058344643412937122.777
40007863924088817789153882137672822293408603038339127.502
400078639152829700468736034342877259733296527228740130.167
40007863918313099684191592465374101857217238411434810108448
52766303
58190.223
P-1 results:
No P-1 results for M400078639


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2016-09-30T21:23:43TJAOIManual testing262263*62.721190.00115,6000.003
2022-08-05T09:35:56TJAOIManual testing267268*67.446210.02615,6000.054


ECM factoring results:
No ECM results for M400078639


Lucas-Lehmer results:
No L-L results for M400078639


PRP results:
No PRP results for M400078639


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
268
267
263
250
260
270
280
290
2100
Last modified: 2022-08-05T09:35:56+00:00