Question #14e44

1 Answer
DeveloperLuke
Aug 29, 2017

The GCF is 1.

Explanation:

1) Find all the factors of both numbers
2) Find the greatest common factor that both numbers share
(e.g. 12&8 both have a common factor of 4 which is the greatest factor that they both share)

17 is a prime number and 17 is not a factor of 21 so the only factor that they both share would be 1.

Related questions
Impact of this question
564 views around the world
You can reuse this answer
Creative Commons License