is 2 19828463 - 1
has 5968963 decimal digits
takes 12.833 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
Actual2671.498562.6866%----1.498562.6866%0.0000%
PrimeNet2650.367961.5385%9000032000000.24354.9911%0.611463.4581%1.9196%
GPU722696.021063.7681%14000040000000.32883.6232%6.349765.0809%1.3127%
Difference-2-4.5224-1.0815%-140000-4000000-0.3288-3.6232%-4.8512-2.3943%-2.3943%

Known prime factors (4 factors, 169.4 bits, 0.00085421% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1982846339656927825.2411
1
-112.255e-139.385e-71.910e-6
1982846314276493371030.41136
22 × 32
2008-09-08997.270e-128.446e-61.719e-5
19828463136347418238232171753.598343817416
23 × 113 × 380329
2014-10-011133803298.194e-50.01950.0363
1982846312592376105663684391960.12731753283413
37 × 858196849
2016-01-14378581968490.008343.88081.956

11 Composite Factors:
exponentprime factorscomposite factordigitsbits*
19828463566161855390073991755.652
198284635407119611712041774741592478.839
19828463194656301249473865552571292684.009
19828463499374939978849018405269532685.368
1982846317977497398505400964360749432890.538
1982846377194707287403938746261343098258333109.250
198284631716937971492047628051813842424826335113.725
198284637129323019752185951493838418108016135115.779
1982846368088483798988213866173933766630839566780142138.966
198284632451185356670746696960594633785225739535163144144.136
1982846397206478752960764796857423268612430831266976989793
7
51169.377
P-1 results:
No P-1 results for M19828463


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-08T15:46:00Will EdgingtonManual testing??30.411105.62128e-1426.531.16193e-13
2014-10-01T11:36:00TJAOIManual testing253254*53.598172.14292e-526.534.42942e-5
2022-06-24T02:43:37LordJuliusManual testing2126053.598178.19444e-526.530.000
2022-06-24T02:43:37LordJuliusManual testing2126030.411107.27019e-1226.531.50276e-11
2022-06-24T02:43:37LordJuliusManual testing2126025.24182.25485e-1326.534.66081e-13
2022-06-24T02:43:37LordJuliusManual testing2126055.652170.00026.530.001
2016-01-14T12:10:03TJAOIManual testing260261*60.127190.00126.510.001


ECM factoring results:
No ECM results for M19828463


Lucas-Lehmer results:
No L-L results for M19828463


PRP results:
No PRP results for M19828463


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
267
261
260
254
2
220
230
240
250
260
270
280
290
2100
Last modified: 2022-06-24T02:43:37+00:00