![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
Prime Factorization of 18:
\Express the composite number as a product of its prime factors.
\Draw the possible factor trees.
\![\"Prime_factorization_tree_18\"](\"/userfiles/image/Library/Algebra1/Prime_factorization_tree_18.gif\")
The prime factorization of 18 is 2 · 3 · 3 or 2 · 32.
\Note: Both trees give same reuslt. Prime facots are unique to a particular number.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The prime factorization of 18 is 2 · 3 · 3 or 2 · 32.