is 2 38112887 - 1
has 11473123 decimal digits
takes 49.229 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
Actual2681.563961.7647%----1.563961.7647%0.0000%
PrimeNet2670.779661.1940%17000065000000.96435.5207%1.743963.3364%2.1424%
GPU7227112.543763.3803%28000090000001.41424.1883%13.958064.9140%1.5337%
Difference-3-10.9798-1.6156%-280000-9000000-1.4142-4.1883%-12.3941-3.1493%-3.1493%

Known prime factors (2 factors, 132.0 bits, 0.00034641% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
38112887276271811630692327612064.583362438840740
22 × 5 × 19 × 29 × 61 × 539167
2006-06-13615391670.14520.05510.1028
381128872009529890344454156812167.4452636286632320
27 × 5 × 11 × 139 × 2694047
2022-08-0513926940470.92900.27520.5134

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
38112887555176463331488847651588539723438832524140132.028
P-1 results:
No P-1 results for M38112887


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2006-06-13T00:00:00Edov4_computers??64.583200.052101.00.106
2003-09-14T00:00:00ANONYMOUSv4_computers21259--0.002--
2003-09-09T00:00:00ANONYMOUSv4_computers21260--0.004--
2022-08-10T19:29:24LordJuliusManual testing2126664.583200.145101.00.298
2022-08-10T19:29:24LordJuliusManual testing266267--0.392--
2022-08-05T09:34:03TJAOIManual testing267268*67.445210.149100.40.305
2022-08-10T19:29:24LordJuliusManual testing26726867.445210.149100.40.305


ECM factoring results:
No ECM results for M38112887


Lucas-Lehmer results:
No L-L results for M38112887


PRP results:
No PRP results for M38112887


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
TF factor-bounds graph:
268
267
266
260
259
2
250
260
270
280
290
2100
Last modified: 2022-08-10T19:29:24+00:00