The factor tree below provides the factors of 18.
A factor tree of 18. 18 branches to 2 and 9. 9 branches to 3 and 3.
What is the prime factorization of 18?
2 * 3^2
To find the prime factorization of a number, we need to break it down into its prime factors. Prime factors are the prime numbers that divide the given number without leaving any remainder.
In the given factor tree for 18, we see that it branches into 2 and 9. And further, the number 9 branches into 3 and 3. Now, we have found the prime factors of 18. They are 2, 3, and 3.
To express the prime factorization of 18, we write it as a product of these prime factors:
18 = 2 * 3 * 3
Therefore, the prime factorization of 18 is 2 * 3 * 3.