Task: Question Understanding
Input (English): Let z(f) = -7*f**2 - 7*f + 9. Let c(k) = -6*k**2 - 7*k + 9. Let p(w) = 6*c(w) - 5*z(w). Let j be p(-8). Calculate the greatest common divisor of 8 and j.
Output (English): numbers