![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
Method 1:
\List the factors of each number.
\Factors of 32: 2, 4, 8, 16, 32
\Factors of 81: 3, 9, 27, 81
\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.
\32 = 2 × 2 × 2 × 2 × 2.
\81 = 3 × 3 × 3 × 3.
\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.
\