OML Search

Prime Factorization



Related Topics:
More Lessons for Grade 5 Math

Math Worksheets

Videos, worksheets, stories and songs to help Grade 5 students learn how to find the prime factorization of a number.

Prime Factorization
In this lesson, students learn that the prime factorization of a number is the given number written as the product of its prime factors.
Finding the Prime Factorization of a Whole Number
Using a factor tree to find the prime factorization of 72



What Is Prime Factorization?
Any composite number can be uniquely factored into prime numbers. You can take any composite number and find one way to write it as a product of prime numbers through prime factorization. Try prime factorization with the number 84. 1. Notice that the number is even, so you immediately know it is composite and divisible by two. 2. Break down each composite factor from there. 3. You are done when all the numbers at the bottom of the tree branches are all prime. In this case, 2, 3 and 7 are all prime numbers, so you are finished. When writing prime factorizations, always write from smallest to largest and remember to use exponents when needed. Use prime factorization to find the great common factor (GCF) or least common multiples (LCM).
Prime Factorization
Review of Prime Factorization


Try out our new and fun Fraction Concoction Game.

Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.

Fraction Concoction Game


OML Search


We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.