Finding LCM and HCF with Number Blocks
This animation visualizes how to find the Highest Common Factor and Lowest Common Multiple of two numbers using prime factorization trees and grouped blocks. It shows shared and unshared prime factors side by side, illustrating why HCF uses common factors while LCM uses all factors. Useful for middle school students learning number theory and preparing for fraction operations like simplifying and finding common denominators.
16:9 · Preview before teaching · automatic layout checks do not establish subject accuracy
The prompt that made it
lcm and hcf
Make the next one in this series
- Show how HCF and LCM relate through the formula HCF times LCM equals product of numbers
- Demonstrate using LCM to add and subtract fractions with different denominators
- Compare the prime factorization method with the division ladder method for finding HCF and LCM
