is 2 393237979 - 1
has 118376428 decimal digits
takes 7,160.208 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
Actual2734.864360.2740%----4.864360.2740%0.0000%
PrimeNet27777.836262.3377%1500000100000000181.29135.8821%259.127564.5530%2.2153%
GPU722811,245.386664.1975%2400000100000000203.75854.3859%1,449.145165.7678%1.5703%
Difference-8-1,240.5222-3.9236%-2400000-100000000-203.7585-4.3859%-1,444.2808-5.4938%-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
393237979388508436742518849292065.07549398641216
26 × 83 × 9299443
2014-05-168392994430.029613.37924.984
3932379792091723584097710827212167.503265961541840
24 × 3 × 5 × 199 × 5568709
2022-09-2119955687090.09838.015314.961

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
393237979812652259755260293356610129903143221180940132.578
P-1 results:
No P-1 results for M393237979


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-05-16T04:55:00Richard172.26.176.16??65.075200.01114,6690.023
2010-05-02T12:30:00Architects Cubedm1_12264265--0.010--
2022-09-21T07:16:11TJAOIManual testing267268*67.503210.02314,6690.047
2022-09-25T22:01:30LordJuliusManual testing2126967.503210.09814,6690.201
2022-09-25T22:01:30LordJuliusManual testing2126965.075200.03014,6690.061
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 M393237979


Lucas-Lehmer results:
No L-L results for M393237979


PRP results:
No PRP results for M393237979


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
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