Question 155
Find all natural numbers that are in the form
$$
\frac{(a+b+c)^{2}}{a b c}
$$
can be represented, where $a, b$ and $c$ are natural numbers.
$$
\frac{(a+b+c)^{2}}{a b c}
$$
can be represented, where $a, b$ and $c$ are natural numbers.
Math Olympiad Vault · MathNet 2004 — Part 01