# Least common multiple

3 videos
1 skill
Life is good, but it can always get better. Just imagine being able to find the smallest number that is a multiple of two other numbers! Other than making your life more fulfilling, it will allow you to do incredible things like adding fractions.

### How to find the least common multiple of two numbers (example)

VIDEO 4:16 minutes
Sal finds the lcm (least common multiple) of 12 and 36, and of 12 and 18. He shows how to do that using the prime factorization method, which is a just great!

### How to find the least common multiple of two numbers with repeating factors (example)

VIDEO 2:35 minutes
Sal finds the lcm (least common multiple) of 25 and 30.

### How to find the least common multiple of three numbers (example)

VIDEO 5:24 minutes
This least common multiple example gives us 3 numbers from which to find the lcm. This is a challenge, but fun. Do it with us!

### Least common multiple

PRACTICE PROBLEMS
Find the lcm (least common multiple) of pairs of integers.