Question

How do you find all the factors of 28?

Answer 1

2,14,4,7,1,28

Explanation:

Find biggest and smallest factor
Your biggest factor is the number itself, `28`. With the biggest number, you also have the smallest factor, `1`.

For the rest of the factors;
Divide the number by `2`. `28/2=14`. Hence you should be looking for factors no bigger than `14`.

You already have `14` and `2`.

Find factors of smaller factors
What is a factor of `14`?

`7`!

If `7` is a factor of `14`, it should be a factor of `28`. If so, what times `7` becomes `28`?

4!

Every factor has its pair
If you've found a factor, ie: 2, It should have its pair. Just divide the number by 2.
If a factor is 7, divide 28 by 7 and you get 4.