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McGraw Hill Integrated II, 2012 View details

3. Simplifying Radical Expressions

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Exercise 84 Page 250

The prime factorization of a composite number is the number written as a product of its prime factors.

3^2* 2* 5

Practice makes perfect

Let's start by recalling the definition of two important terms.

Term	Definition	Examples
Prime Number	A number that has exactly two positive factors, 1 and itself.	3, 5, 13
Composite Number	A number that is not a prime number.	4, 12, 63

We want to write the prime factorization of 90. The prime factorization of a composite number is the number written as a product of its prime factors. We will use factor pairs and a factor tree to find the desired prime factorization. The factor tree is complete when only prime factors appear in the product.