Question

How do you find the greatest common factor of 56, 63?

Answer 1

The GCF of `56` and `63` is `7`

Explanation:

One way to find the greatest common factor (GCF) of two positive numbers goes as follows:

• Divide the larger number by the smaller to give a quotient and remainder.

• If the remainder is `0` then the smaller number is the GCF.

• Otherwise repeat with the smaller number and the remainder.

In our example:

`63 / 56 = 1" "` with remainder `7`

`56 / 7 = 8" "` with remainder `0`

So the GCF is `7`