How do you find the GCF of 3 and 9?

1 Answer
Mar 6, 2018

Answer:

See a solution process below:

Explanation:

Find the prime factors for each number as:

#3 = 3#

#3# is a prime number and cannot be factored

#9 = 3 xx 3#

Now identify the common factors and determine the GCF:

#3 = color(red)(3)#

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

Therefore:

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