Find out the LCM of $6$ and $9$

Solve for the LCM of given numbers

Firstly, let us calculate the prime factors of two numbers.

$$\begin{gathered} \Rightarrow 6=2\times 3 \\ \Rightarrow 9=3\times 3 \end{gathered}$$

$\Rightarrow$L.C.M$(6,9)$ $=2\times 3\times 3$

$\Rightarrow$L.C.M. $(6,9)$$=18$

Hence, LCM of $6$ and $9$ is $18$.