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! It's called the LCM or Least Common Multiple. Other than making your life more fulfilling, lcm will allow you to do incredible things like adding fractions. Common Core Standard: 6.NS.B.4

Least common multiple exercise

VIDEO 4:16 minutes
We're practicing finding the least common multiple in these example exercises. We'll teach you the prime factorization approach which is a pretty nifty way to find the lcm (least common multiple).

Least common multiple exercise 2

VIDEO 2:35 minutes
Here's a lcm (least common multiple) example exercise that's a little bit harder, but totally doable. Again, we'll use the prime factorization approach.

Least common multiple exercise: 3 numbers

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