Finding the Prime Factors of a Given Number Using Tree Diagrams

We know that 2, 3, 5, 7 and 11 are the first five prime numbers. Now we will learn to write a given number as the product of these prime numbers which is also known as prime factorization.

For example; 4 we can write its prime factorization as shown below;

• 4 = 2 x 2

We have only prime numbers (both 2's) in the factorization and hence it is known as prime factorization.

Let's do two more examples; Write Prime Factorization of 6 and 10

• 6 = 2 x 3
• 10 = 2 x 5

Below is the activity sheet on the concept I prepared which can be printed on 8.5 x 11 sheet of paper by right clicking on it;

Below are the links to 2nd grade and 3rd grade math pages, where you can print all the content for 2nd and 3rd grade math students;

2ND GRADE MATH CORE CURRICULUM

3RD GRADE MATH CORE CURRICULUM