Question #feb6e

2 Answers
Sep 15, 2017

4

Explanation:

List down all the factors of 24 and 28.

24:
1, 2, 3, color(blue)4, 6 ,8, 12, 24
28:
1 ,2 ,color(blue)4, 7 ,14 ,28

4 is the greatest common factor.

Sep 15, 2017

See a solution process below:

Explanation:

Find the prime factors for each number as:

24 = 2 xx 2 xx 2 xx 3

28 = 2 xx 2 xx 7

Now identify the common factors and determine the GCF:

24 = color(red)(2) xx color(red)(2) xx 2 xx 3

28 = color(red)(2) xx color(red)(2) xx 7

Therefore:

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