# How do you find the greatest common factor of 8 20 and 44?

Dec 19, 2016

Greatest common factor is $4$

#### Explanation:

The prime factors of $8$, $20$ and $44$ are

$8 = \textcolor{red}{2 \times 2} \times 2$

$20 = \textcolor{red}{2 \times 2} \times 5$

$44 = \textcolor{red}{2 \times 2} \times 11$

as the common factors among all are $\textcolor{red}{2 \times 2}$,

Greatest common factor is $2 \times 2 = 4$