Question 86
How many ordered pairs $(a, b)$, with $a$ and $b$ positive integers, satisfy
$$
a + b + \gcd(a, b) = 33?
$$
$$
a + b + \gcd(a, b) = 33?
$$
MathNet 2017-part-01 — 176 problems (EN–VI) Question 86
Math Olympiad Vault · MathNet 2017-part-01 — 176 problems (EN–VI)