is 2 67072141 - 1
has 20190727 decimal digits
takes 169.543 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
Actual2670.443061.1940%----0.443061.1940%0.0000%
PrimeNet2703.562662.8571%280000130000003.56645.3196%7.129064.8330%1.9758%
GPU7227457.041164.8649%450000150000004.55493.9289%61.596066.2453%1.3804%
Difference-7-56.5980-3.6708%-450000-15000000-4.5549-3.9289%-61.1530-5.0513%-5.0513%

Known prime factors (1 factor, 50.2 bits, 0.00007481% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6707214112744050199361931650.1799500256
25 × 32 × 32987
-32329872.980e-60.00670.0123

P-1 results:
No P-1 results for M67072141


Trial Factoring results:
No TF results for M67072141


ECM factoring results:
No ECM results for M67072141


Lucas-Lehmer results:
No L-L results for M67072141


PRP results:
No PRP results for M67072141


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
TF factor-bounds graph:
267
250
260
270
280
290
2100