Prime Factorisation To Find HCF & LCM

This video tutorial explains how to find the highest common factor (HCF) and the lowest common multiple (LCM) using prime factors. It begins with an introduction to these concepts and suggests watching prerequisite videos if needed. The tutorial then demonstrates how to find the LCM by taking the largest power of each prime factor from the numbers involved. It follows with a method to find the HCF by identifying common prime factors. The video concludes with a summary of the techniques and encourages viewers to practice these skills for efficiency. Viewers are also invited to engage with the content by liking, subscribing, and commenting.

What is the process to find the lowest common multiple (LCM) of two numbers?

What are the prime factors of 240 and 396, and how do they help in finding the LCM?

How do you determine the highest common factor (HCF) from two lists of factors?

Explain the difference between finding the LCM and the HCF.

Why is it beneficial to memorize the methods for finding HCF and LCM?