![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
Prime Factorization of 81:
\Express the composite number as a product of its prime factors.
\Draw the possible factor trees.
\ ![\"prime](\"/userfiles/image/Library/Pre_Algebra/prime_factorization_tree_81.gif\")
The prime factorization of 81 is 3 · 3 · 3 · 3 . or 34 .
\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 81 is 3 · 3 · 3 · 3 . or 34.