IXL | Find all factor pairs of a number: up to 144

Find all the factor pairs for 30 and complete the equations.

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Learn with an example

question

Find all the factor pairs for 16 and complete the equations.

key idea

A factor of a number divides the number evenly.

A factor pair for a number is a pair of factors whose product is that number. For example, 2 and 5 are a factor pair for 10 because

solution

Each of the equations is missing a factor. In the first equation, one of the factors is 1. You can use a multiplication fact to find the missing factor.

So, 1 and 16 are a factor pair for 16.

In the second equation, one of the factors is 2. You can use a multiplication fact to find the missing factor.

So, 2 and 8 are a factor pair for 16.

In the third equation, one of the factors is 4. You can use a multiplication fact to find the missing factor.

So, 4 and 4 are a factor pair for 16.

These equations show all the factor pairs for 16:

Looking for more? Try these:

Lesson: Factors

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Teacher tools

Work it out

Not feeling ready yet? These can help:

Understand factors and factor pairs

G.5Find all the factor pairs of a number

Lesson: Factors

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