Question

What are all the greatest common factors of $36$ and $90$?

Answer 1

G C F $18$

It’s also called Greatest Common Divisor G C D

Explanation:

To find G C F of $36,90$:

First write the factors of both terms :

Factors of $36=2\ast 2\ast 3\ast 3$

Factors of $90=2\ast 3\ast 3\ast 5$

Select the common factors in both terms as above.

$2\ast 3\ast 3=18$ is the G C F.