IXL | Complete the factor pairs of a number

Find all the factor pairs for 50 and complete the equations.

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Learn with an example

question

Find all the factor pairs for 18 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 18 are a factor pair for 18.

In the second equation, one of the factors is 9. You can use a multiplication fact to find the missing factor.

So, 2 and 9 are a factor pair for 18.

In the third equation, one of the factors is 3. You can use a multiplication fact to find the missing factor.

So, 3 and 6 are a factor pair for 18.

These equations show all the factor pairs for 18:

Looking for more? Try these:

Lesson: Factors

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Teacher tools

Work it out

Not feeling ready yet? These can help:

Multiplication facts: find the missing factor

J.1Division facts to 10

Lesson: Factors

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