The factors of a number are the values that divide into it precisely with no left-over remainders. Obviously, these all include the value itself and one. We are more concerned about all the other factors beside those two. If a number is only divisible by one and itself, we call it a prime number. Prime numbers are a vital to most forms of modern computer encryption and help make buying things online a lot safer. There are a few rules of divisibility that we can use to help us with this skill. If the value is even, we know two must be a factor. If the number ends in a five or zero, it must be divisible by five. We working on helping students identify all the factors of a set integer. Start of simple, your 2s and 3s. Then start high and find all the numbers in between. This is where knowing your times tables is key. While this skill seems mundane and almost useless, it is a key skill in algebra that will later give us clarity in the algebra realm. Students that can master this quickly will be at ease when working on combining like terms and variables within those expressions or equations.

Activities include working with prime numbers, listing all of the factors of a number, determining factors without calculations, and more. These worksheets explain how to find all the factors of a number, and how to determine if one number is a factor of another number. Solutions to sample problems and practice problems are provided. We show you how to quickly process these types of problems and help them find an end solution. We also learn to apply these skills to algebraic models and equations.