Students create a factor tree with numbers between 1 and One class period, 45 minutes in length. In this lesson, students will create factor trees. Recognize that a whole number is a multiple of each of its factors. Determine whether a given whole number in the range is a multiple of a given one-digit number.
Factor Trees in Math: Making Factoring Easy
4th Grade Math Lesson on Factor Trees
Factors are numbers that divide evenly into another number, and a prime factor is a factor that is a prime number. Factor trees are helpful tools for students because they provide a graphic representation of the prime factors that can divide into a given number. Factor trees are so named because once created, they look somewhat like a tree. The worksheets below give students practice in creating factor trees. For example, the free printables list numbers such as 28, 44, 99, or 76 and ask students to create a factor tree for each.
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Type whole numbers greater than one into the circles that multiply together to give the number in the circle above them. Each branch of the tree will eventually end in a prime number. You can read the full instructions for more information about this activity.
Unique factoring worksheets are available for grade 5 through high school. List out the factors, complete the prime factor tree, draw your own prime factor tree, find the GCF and LCM and explore a free number of printable worksheets on this page. Knowing how to list out the factors is fundamental to work on the following 5th grade worksheets.