![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
Method 1:
\List the factors of each number.
\Factors of 39: 3, 13, 39
\Factors of 50: 2, 5, 10, 25, 50
\There are no common prime factors.Two numbers aiways have 1 as a common factor.So, the GCF is 1, and the numbers are relativety prime.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
Method 2:
\Write the prime factorization of each number.
\39 = 1 × 3 × 13.
\50 = 1 × 2 × 5 × 5.
\There are no common prime factors.Two numbers aiways have 1 as a common factor.So, the GCF is 1, and the numbers are relativety prime.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
There are no common prime factors.Two numbers aiways have 1 as a common factor.So, the GCF is 1, and the numbers are relativety prime.
\