![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
Prime Factorization of 45:
\Express the composite number as a product of its prime factors.
\Draw the possible factor trees to write the factorization of 45.
\![\"Prime_factorization_tree_18\"](\"http://www.mathskey.com/userfiles/image/Library/Algebra1/Prime_factorization_tree_18.gif\")
Both trees give same reuslt. Prime factors are unique to a particular number.
\The prime factorization of 18 is 2 · 3 · 3 or 2 · 32.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The prime factorization of 18 is 2 · 3 · 3 or 2 · 32.