Question

What is the greatest common factor of 8x and 40?

Answer 1

ANSWER

The greatest common factor is
$8$

EXPLANATION

We want to find the greatest common factor of
$8x \: and \: 40.$



We use prime factorization to find the greatest common factor of
$8x \: \: and \: \: 40.$


The prime factorization of 8x is,

$8x = {2}^{3} \times x$

The prime factorization of 40 is

$40 = {2}^{3} \times 5$



The greatest common factor of 8x and 40 is

${2}^{3} = 8$

Answer 2

The GCF of 8x and 40 is 8.