is 2 393287663 - 1
has 118391384 decimal digits
takes 7,161.113 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
Actual2734.863760.2740%----4.863760.2740%0.0000%
PrimeNet27777.826462.3377%1500000100000000181.29135.8821%259.117764.5530%2.2154%
GPU722811,245.229264.1975%2400000100000000203.75854.3860%1,448.987865.7678%1.5703%
Difference-8-1,240.3655-3.9236%-2400000-100000000-203.7585-4.3860%-1,444.1240-5.4938%-1.5703%

Known prime factors (2 factors, 132.6 bits, 0.00003371% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
393287663386725001843480660632065.06849165666537
13 × 277 × 13653337
2014-05-18277136533370.021719.64736.682
3932876632095299341473428155532167.506266382541152
25 × 32 × 7 × 13 × 10164169
2022-09-2232101641690.128114.62227.307

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
393287663810304641693955317684378543747286787783940132.574
P-1 results:
No P-1 results for M393287663


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-05-18T10:45:00Mike_SOld_Blue??65.068200.00314,6710.006
2010-05-02T13:40:00Architects Cubedm1_62264265--0.010--
2022-09-22T09:48:29TJAOIManual testing267268*67.506210.05314,6710.108
2022-09-25T22:01:30LordJuliusManual testing2126967.506210.12814,6710.262
2022-09-25T22:01:30LordJuliusManual testing2126965.068200.02214,6710.044
2022-09-25T22:01:30LordJuliusManual testing269270--0.304--
2022-09-25T22:01:30LordJuliusManual testing270271--0.608--
2022-09-25T22:01:30LordJuliusManual testing271272--1.216--
2022-09-25T22:01:30LordJuliusManual testing272273--2.432--


ECM factoring results:
No ECM results for M393287663


Lucas-Lehmer results:
No L-L results for M393287663


PRP results:
No PRP results for M393287663


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
273
272
271
270
269
268
265
2
250
260
270
280
290
2100
Last modified: 2022-09-25T22:01:30+00:00