is 2 1384619 - 1
has 416812 decimal digits
takes 0.053 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
Actual26721.460068.6567%500000150000000.07144.9007%21.531470.1928%1.5360%
PrimeNet2560.006962.5000%65001100000.00072.7562%0.007663.5336%1.0336%
GPU722600.110965.0000%5500700000.00051.2007%0.111465.4202%0.4202%
Difference+7+21.3491+3.6567%+494500+14930000+0.0709+3.7000%+21.4200+4.7725%+4.7725%

Known prime factors (2 factors, 109.0 bits, 0.00786930% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
138461911658491991030.119421
421
-14211.127e-101.322e-62.369e-6
13846195414381934605675807880712478.841195518837117130265
5 × 172 × 167 × 401 × 2020504931
2021-10-28401202050493164,5476.094411.383

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
138461963123528415400975214714036410512933108.960
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
unknown50000015000000-
skipped known factor: 1165849199
--0.071--4.901%


Trial Factoring results:
No TF results for M1384619


ECM factoring results:

Old Calculation Method

Total ECM effort:25.316 GHz-days
Estimated T-Level:25.391
DigitsB1CurvesCompleteFacMiss
2011000301 / 1003.0104.855%
2550000301 / 2801.07534.064%
3025000050 / 6400.07892.479%

New Calculation Method

Total ECM effort:25.316 GHz-days
Estimated T-Level:25.391
DigitsB1CompleteFacMiss
201100014.6540.000%
25500001.65119.189%
302500000.14186.866%
3510000000.01099.021%


ECM Summary

B1B2factorcurvesGHz-days
50000500000025111.79
250000350000004712.72
2500003500000030.812


Lucas-Lehmer results:
No L-L results for M1384619


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-01T00:38:53Oliver KruseGTX-0
1165849199
71B1096B4A42F5__no
2017-10-25T03:19:05kkmrkkblmbrbkold
1165849199
71B1096B4A42F5__no
2021-10-29T08:06:21SRJ2877LTOS
1165849199
541438193460567580788071
196D44CA4AD8A1FCno
2021-10-29T12:15:25JackBlockWin10
1165849199
541438193460567580788071
196D44CA4AD8A1FCno


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
267
230
240
250
260
270
280
290
2100
Last modified: 2021-10-29T12:15:25+00:00