is 2 14379091 - 1
has 4328538 decimal digits
takes 6.886 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27266.508666.6667%3000002147909408.32305.6824%74.831668.5608%1.8941%
Target2698.302865.2174%10000024000000.15652.9220%8.459366.2337%1.0163%
Difference+3+58.2058+1.4493%+200000+212390940+8.1665+2.7604%+66.3724+2.3271%+0.8778%

Known prime factors (4 factors, 259.2 bits, 0.00180251% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1437909161254927671032.512213
3 × 71
-3714.163e-114.656e-65.312e-6
1437909130221685881991341.459105089
19 × 5531
2008-09-081955313.558e-80.00020.0004
14379091128734276232091443.549447644
22 × 17 × 29 × 227
2008-09-08292271.542e-72.763e-54.098e-5
14379091441670899176548947700685257426142426384455143141.664153580952779472967971579447346895025
52 × 307 × 389 × 4001 × 5683 × 17971 × 84377 × 161911 × 9214897
2023-01-1816191192148971.183e+100.45490.6511

11 Composite Factors:
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-11-15T07:01:33nordisweet16_30.8b14300000300000-
skipped known factor: 6125492767
skipped known factor: 3022168588199
skipped known factor: 12873427623209
--0.208--1.186%
2023-01-18T21:01:36nordisweet16_30.8b1430000021479094043141.6648.32313.7716.655.682%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-08T10:30:00Will EdgingtonManual testing??43.549147.27443e-814.521.53349e-7
2008-09-08T10:30:00Will EdgingtonManual testing??41.459131.52094e-814.523.20623e-8
2023-01-22T06:04:23DobriManual testing2126443.549141.54238e-714.523.25141e-7
2023-01-22T06:04:23DobriManual testing2126441.459133.55828e-814.527.50104e-8
2023-01-22T06:04:23DobriManual testing2126432.512104.16262e-1114.528.77503e-11
TF assumed completed to 67 but no detailed record exists
2023-01-22T06:04:23DobriManual testing267268--2.079--
2023-01-22T06:04:23DobriManual testing268269--4.158--
2023-01-22T06:10:09DobriManual testing269270--8.315--
2023-01-22T10:09:56DobriManual testing270271--16.63--
2023-01-22T23:19:11DobriManual testing271272--33.26--


ECM factoring results:
No ECM results for M14379091


Lucas-Lehmer results:
No L-L results for M14379091


PRP results:
dateuseridcompidcofactorsres64PRP
2023-01-22T02:29:53DobriManual testing
6125492767
3022168588199
12873427623209
4416708991765489477006852574261424263844551
91D929A0EB409FC0no


P-1 factor-bounds graph:
B1 = 300000, B2 = 214790940 (P-1 stage 2)
B1 = 300000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
272
271
270
269
268
264
2
230
240
250
260
270
280
290
2100
2110
2120
2130
2140
2150
Last modified: 2023-01-22T23:19:11+00:00