is 2 19301371 - 1
has 5810292 decimal digits
takes 12.305 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
Actual2683.088163.2353%----3.088163.2353%0.0000%
PrimeNet2650.378061.5385%9000028000000.21974.8430%0.597763.4012%1.8627%
GPU722696.185463.7681%14000040000000.32383.6096%6.509265.0760%1.3078%
Difference-1-3.0973-0.5328%-140000-4000000-0.3238-3.6096%-3.4211-1.8407%-1.8407%

Known prime factors (2 factors, 109.0 bits, 0.00056452% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
19301371106816875333371443.280276708
22 × 3 × 23059
-4230591.150e-70.00120.0022
19301371590737915844189131672065.6791530300401573
31 × 139 × 355140497
2019-03-141393551404970.437717.88633.406

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
1930137163100778311423568958930262074827933108.959
P-1 results:
No P-1 results for M19301371


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2019-03-14T13:43:46TJAOIManual testing265266*65.679200.06025.070.122
2022-06-24T02:43:34LordJuliusManual testing266267--0.774--
2022-04-11T17:14:06LordJuliusManual testing267268--1.549--


ECM factoring results:
No ECM results for M19301371


Lucas-Lehmer results:
No L-L results for M19301371


PRP results:
No PRP results for M19301371


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
268
267
266
240
250
260
270
280
290
2100
Last modified: 2022-06-24T02:43:34+00:00