Question 48
Find the natural number $n$ which is the product of the primes $p, q$ and $r$, knowing that
$$
r-q=2p \quad \text{y} \quad rq+p^{2}=676
$$
$$
r-q=2p \quad \text{y} \quad rq+p^{2}=676
$$
MathNet 2001 — Part 01 Question 48
Math Olympiad Vault · MathNet 2001 — Part 01