Least Common Multiple

The video tutorial explains the concept of multiples and how to find them, using the number 5 as an example. It then introduces the least common multiple (LCM) and demonstrates how to find the LCM of two numbers, using examples with the numbers 3 and 4, and 2 and 7. The tutorial concludes with a step-by-step guide on finding the LCM of any two numbers.

What is the least common multiple of three and four?

Explain how to determine if two numbers have a common multiple.