Question 146
Let $a$ and $b$ be positive integers such that $a!b!$ is a multiple of $a! + b!$.
Prove that $3a \ge 2b + 2$.
Prove that $3a \ge 2b + 2$.
MathNet 2016-part-01 — 184 problems (EN–VI) Question 146
Math Olympiad Vault · MathNet 2016-part-01 — 184 problems (EN–VI)