How do you find the GCF of 12 and 56?

1 Answer
Mar 6, 2018

Answer:

See a solution process below:

Explanation:

Find the prime factors for each number as:

#12 = 2 xx 2 xx 3#

#56 = 2 xx 2 xx 2 xx 7#

Now identify the common factors and determine the GCF:

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

#56 = color(red)(2) xx color(red)(2) xx 2 xx 7#

Therefore:

#"GCF" = color(red)(2) xx color(red)(2) = 4#