MathDB

3

Part of 1970 IMO Longlists

Problems(1)

Very Easy Factorial Divisibility - ILL 1970 - Problem 3.

Source:

5/24/2011
Prove that (a!⋅b!)∣(a+b)!(a!\cdot b!) | (a+b)! ∀a,b∈N\forall a,b\in\mathbb{N}.
factorial