Given that HCF $(306$ and $657)=9$, find LCM of $(306$ and $657)$

We know that, 

$\text{LCM x HCF = Product of the two numbers}$

$LCM=\frac{\text{Product of two numbers}}{HCF}$

Product of the two numbers $=306\times 657=201042$

LCM $=\frac{201042}{9}$

LCM $=22,338$