Question

Find the LCM:

(6) 45, 36, 30

Answer 1

$\begin{array}{cc}2& 45,36,30\\ 2& 45,18,15\\ 3& 45,9,15\\ 3& 15,3,5\\ 5& 5,1,5\\ & 1,1,1\end{array}$

LCM = 2 × 2 × 3 × 3 × 5 = 180