Question 4
Given that HCF (306, 657) = 9, find LCM (306, 657).

We know that, product of LCM and HCF = product of two numbers
LCM $\times$ 9 = 306 $\times$ 657
Divide both sides by 9 we get
$LCM=\frac{306\times 657}{9}=22338$