HCF and LCM - Comparison of Division and Index Notation Methods

In this clip, you will learn to find the HCF and LCM using the division and index notation methods.
By comparing the 2 methods side by side when finding HCF and LCM, you would notice that the index notation could be derived from the division method.
On the whole, the index notation method is definitely more efficient, compared to long division method.