Factors of 81 in Pairs
So you need to find the factor pairs for 81 do you? Fear not! In this quick guide we'll describe what the factor pairs of 81 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 81. In proper math terms, the number 81 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 81 we need to first get all of the factors of 81. 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 81 are 1, 3, 9, 27, and 81.
List of Factor Pairs for 81
Okay, so we know all of the factors for 81 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 81.
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 81 for you automatically:
- 1 x 81 = 81
- 3 x 27 = 81
- 9 x 9 = 81
- 27 x 3 = 81
- 81 x 1 = 81
So there you have it. A complete guide to the factor pairs of 81. 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! ;)
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"Factors of 81 in Pairs". VisualFractions.com. Accessed on May 24, 2022. http://visualfractions.com/calculator/factor-pairs/factors-of-81-in-pairs/.
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Factors of 81 in Pairs. VisualFractions.com. Retrieved from http://visualfractions.com/calculator/factor-pairs/factors-of-81-in-pairs/.
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