Factors of 128 in Pairs

So you need to find the factor pairs for 128 do you? Fear not! In this quick guide we'll describe what the factor pairs of 128 are, how you find them and list them out for you to prove the calculation works. Let's dive in!

What Are Factor Pairs?

A factor pair is a combination of two factors which can be multiplied together to equal 128. In proper math terms, the number 128 is called the product and the two numbers that can be multiplied together to equal it are called the factors.

In order to work out the factor pairs of 128 we need to first get all of the factors of 128. Once you have the list of all those factors we can pair them together to list out all of the factor pairs.

The complete list of factors for 128 are 1, 2, 4, 8, 16, 32, 64, and 128.

List of Factor Pairs for 128

Okay, so we know all of the factors for 128 now and to work out the factor pairs we can go through that list and find all of the different combinations that can be used to multiply together to result in 128.

If there are a lot of factors then it might take you a little while to calculate all of the factor pairs, but luckily we have the power of computers and can calculate the factor pairs of 128 for you automatically:

  • 1 x 128 = 128
  • 2 x 64 = 128
  • 4 x 32 = 128
  • 8 x 16 = 128
  • 16 x 8 = 128
  • 32 x 4 = 128
  • 64 x 2 = 128
  • 128 x 1 = 128

So there you have it. A complete guide to the factor pairs of 128. Hopefully this will help you in your math class to learn (or teach) factor pairs in a way that is easy to understand.

Feel free to try the calculator below to check another number or, if you're feeling fancy, grab a pencil and paper and try and do it by hand. Just make sure to pick small numbers! ;)

Factor Pair Calculator

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