![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
Method 1:
\List the factors of each number.
\Factors of 152 : 2, 4, 8, 19, 38, 76, 152
\Factors of 171: 3 , 9, 19, 57, 171
\Identify the greatest common factor.
\The greatest common factor of 152 and 171 is 19.
\The GCF is 19. So, the numbers are not relatively prime.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
Method 2:
\Write the prime factorization of each number.
\152 = 2 × 2 × 2 × 19.
\171 = 3 × 3 × 19.
\The GCF is the product of the common prime factors in each number.
\GCF = 19.
\The greatest common factor of 152 and 171 is 19.
\The GCF is 19. So, the numbers are not relatively prime.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The greatest common factor of 152 and 171 is 19.
\The GCF is 19. So, the numbers are not relatively prime.