How to find the greatest common factor?​ Let's use a small example

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​Best friends do pretty much everything together. They also have a lot in common. With common factors it's similar. Take 10 and 15 for example. What do they have in common?

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By Abby Blah

We'll use 10 and 15

We'll use​ 12 and 16

We'll use ​32 and 80

We'll use 9 and 21​

​We will see the common factors between these numbers in this lesson.

​Let's use some whole numbers.

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