Question 62
For each prime $p$, a polynomial $P(x)$ with rational coefficients is called $p$-good if and only if there exist three integers $a, b$, and $c$ such that $0 \leq a \lt b \lt c \lt \frac{p}{3}$ and $p$ divides all the numerators of $P(a)$, $P(b)$, and $P(c)$, when written in simplest form. Compute the number of ordered pairs $(r, s)$ of rational numbers such that the polynomial $x^{3} + 10 x^{2} + r x + s$ is $p$-good for infinitely many primes $p$.