is 2 19189661 - 1
has 5776664 decimal digits
takes 12.233 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
Actual2671.548462.6866%----1.548462.6866%0.0000%
PrimeNet2650.380261.5385%9000028000000.21974.8391%0.599963.3997%1.8612%
GPU722696.221463.7681%14000040000000.32383.6067%6.545265.0749%1.3068%
Difference-2-4.6730-1.0815%-140000-4000000-0.3238-3.6067%-4.9968-2.3883%-2.3883%

Known prime factors (1 factor, 44.7 bits, 0.00023279% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
19189661280201289230491444.672730084
22 × 37 × 4933
-3749331.254e-70.00030.0005

P-1 results:
No P-1 results for M19189661


Trial Factoring results:
No TF results for M19189661


ECM factoring results:
No ECM results for M19189661


Lucas-Lehmer results:
No L-L results for M19189661


PRP results:
No PRP results for M19189661


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
TF factor-bounds graph:
267
240
250
260
270
280
290
2100