Contributor: Ashley Nail Murphy. Lesson ID: 13405
What are factors and multiples? How are they similar, and how are they different? Solve an important riddle and become an expert on factors and multiples!
Ailee says 2 is a factor of 16, and 16 is a multiple of 2; however, 4 is a factor of 16 and also a multiple of 2.
Wow! That seems confusing!
The first step to discovering if Ailee's statement is true is to look at the vocabulary words.
Yes! Math has vocabulary, and it is so important in understanding confusing topics.
First, we need to define the words factor and multiple.
Factors
Look at these parts of a multiplication equation:
A factor is the number being multiplied by another factor to make a product.
So in this equation, 2 and 10 are the factors of 20.
Let's try a few more:
So now that you know 2 and 10 are factors of 20, try thinking of any other factors that make 20 when multiplied together.
Yes! 4 x 5 and 1 x 20 are also factors that, when multiplied, make the product of 20.
To make a list of the factors of 20, you list them in order from least to greatest:
So, the factors of 20 are 1, 2, 4, 5, 10, 20.
Let's try a few more:
Multiples
Multiples are related to factors because a multiple is the product of a given number by another whole number. Multiples are also what you get when you skip count.
For example, let's find the multiples of 3.
3 becomes a factor, and then we multiply it by each whole number.
We start with the multiplication equations of 3 x 1 = 3 and continue on.
Yes!
To make a list of the multiples of 3, you list them in order from least to greatest:
The list also shows skip counting by 3.
Let's try a few more:
Factors vs. Multiples
Now, let's compare the two vocabulary words using 10 as an example:
Factors | Multiples |
2 x 5 = 10 |
10 x 2 = 20 |
2 x 5 = 10 1 x 10 = 10 |
10 20 30 etc. |
1 < 10 2 < 10 5 < 10 10 = 10 |
10 = 10 20 > 10 30 > 10 etc. |
1 2 5 10 |
10 20 30 40 50 etc. |
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