Comme un jeu

\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)

Courses About

Suppose an integer \(n\) is divisible by \(4\) and by \(9\). We can conclude that \(n\) is divisible by \(36\) because:

\(4\) and \(9\) are coprime (\(\gcd(4,9)=1\)).
\(36\) is the sum of \(4\) and \(9\).
\(4\) and \(9\) are both square numbers.