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Divisibility and factors

3 videos
3 skills
In this tutorial, we'll begin to think about the numbers that "make up" the number. This will be useful throughout our study of math. Whether we are adding fractions, exploring mystical number patterns, or breaking computer codes, factoring numbers are key! Eye of the tiger!

Finding factors of a number

VIDEO 9:53 minutes
To find the factors of a number means to find all the whole numbers that the number in question is divisible by. Can you help us find the factors in this example?

Finding factors and multiples

VIDEO 4:00 minutes
Watch and listen as we explain a simple way of remembering the difference between factors and multiples.

Interactive module: finding factors

VIDEO 3:10 minutes
Here's a video of Sal working on a exercise which helps you visualize the process of finding a number's factors.

Divisibility intuition

PRACTICE PROBLEMS

Factor pairs

PRACTICE PROBLEMS
Practice finding factor pairs for whole numbers.

Identifying factors and multiples

PRACTICE PROBLEMS
Demonstrate understanding of factors and multiples.