For this ACT Math post, we are going to delve briefly into number theory. On every ACT test, you are going to see problems related to either factors, multiples, primes, or a combination of all three types of numbers. We cover a basic example that involves finding factors of numbers, as well as recognizing prime numbers.

The example used in the video will be based off the following ACT math problem below:

Click here to see the problem.

This is the practice exercise we will work out in the video:

This practice problem is considered an EASY to MEDIUM difficulty problem.