Question

Find the LCM of
$3,4$ and $18$

Answer 1

$3|3,4,18$

______________

$2|1,4,6$

______________

$2|1,2,3$

______________

$3|1,1,3$

_______________

$1,1,1$

$LCM=3\times 2\times 2\times 3=36$.