Prime Factorization of 85:
Express the composite number as a product of its prime factors.
Draw the possible factor trees.
The prime factorization of 85 is 5 · 17.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")