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Finding factors and multiples of numbers helps solve many mathematical problems. It is also very useful when working with fractions e.g. adding 1/3 and 1/2.

This section includes explanations of what factors and multiples are, prime numbers and composite numbers.

Select from the links above or from the menu options to learn more about factors and multiples.

There are also worked examples showing how to do prime factorization using factor trees as well using the greatest common factor to solve problems.

You'll find the worksheets below under Resources section of HelpingWithMath.com and they are also listed individually on the pages in this section that contain related guidance and worked examples.

- Finding Factors (1 of 2)
- Finding Factors (2 of 2)
- Factors - Prime and Composite Numbers (1 of 2)
- Factors - Prime and Composite Numbers (2 of 2)
- Finding Prime Factorization (1 of 2) (with factor trees)
- Finding Prime Factorization (2 of 2) (with factor trees)
- Greatest Common Factors (1 of 2)
- Greatest Common Factors (2 of 2)
- Multiples (1 of 2) (including Least Common Multiple)
- Multiples (2 of 2) (including Least Common Multiple)

Worksheets With Guided Practice

- Multiples (2-page worksheet. Includes Guided Practice)
- Division and Multiples (2-page worksheet. Includes Guided Practice)
- Factors (3-page worksheet with Guided Practice)
- Factors (Prime and Composite Numbers) (3-page worksheet with Guided Practice)

The worksheets below are also listed in the Multiplication Worksheets section.

- Factor Pairs: 4, 6, & 8
- Factor Pairs: 9, 10, & 12
- Factor Pairs: 14, 15, & 16
- Factor Pairs: 18, 20, & 21
- Factor Pairs: 22, 24, & 25
- Factor Pairs: 28 & 30
- Factor Pairs: 32 & 36