Question #6d70a

1 Answer
Sep 19, 2017

See a solution process below:

Explanation:

Find the prime factors for each number as:

#54 = 2 xx 3 xx 3 xx 3#

#45 = 3 xx 3 xx 5#

Now identify the common factors and determine the GCF:

#54 = 2 xx color(red)(3) xx color(red)(3) xx 3#

#45 = color(red)(3) xx color(red)(3) xx 5#

Therefore:

#"GCF" = color(red)(3) xx color(red)(3) = 9#