Prime Factorization is the second section of Chapter 1: Number Relationships. In this section, students learn how to use factor trees to decompose whole numbers into their prime factors.
Introduction to Prime Factorization
First, we defined prime factorization and looked at some examples. We actually used linking cubes to do this. For an example, see the activity on Factor Blocks.
Next, we tackled some bigger numbers, that couldn't be calculated using linking cubes.
Here, we wanted to find all of the factors of 1050. We found out we could sort of do it using the prime factors. It was quite a bit faster than the previous method we had, but there were more opportunities to make mistakes.