Home - HomeschoolMath.net      IXL math practice
You are here: HomeWorksheets → Factoring

Free worksheets for prime factorization / find factors of a number

Create an unlimited supply of free worksheets for prime factorization or for finding all the factors of the given numbers. The worksheets are available in both html and PDF formats (both are easy to print), and they come with an answer key on the second page of the file.

Each worksheet is randomly generated and thus unique. You can customize the worksheets by choosing the difficulty level, limits for the numbers to be factored, font size, spacing, border, and the number of problems.

The answer key will list the factorization using exponential notation: each prime factor is raised to the appropriate power.

Example worksheets

Find all the factors of the given number between 4 and 50

View in browser     Create PDF

Find all the factors of the given number between 4 and 100

View in browser     Create PDF

Prime factorization:
numbers within 4-100

View in browser     Create PDF

Prime factorization:
numbers within 4-500

View in browser     Create PDF

Note: The largest number to be factored allowed is 10,000, because I don't want people to try such enormous factoring feats that it would crash the server. Just to be safe.

Factoring Worksheet Generator

Columns: Rows:
(These determine the number of problems)

List all the factors of the given number; range from  to 
Easy factoring: numbers within 4-100
Medium factoring: numbers within 4-200
Custom factoring: numbers from to

Extra vertical space below the problems:  lines

Font:   Font Size: 

Cell Padding:     Border:      Bordercolor: 

Additional title & instructions  (HTML allowed):


Math Made Easy, grade 5

Math Made Easy, Grade 5 Math Workbook

This workbook has been compiled and tested by a team of math experts to increase your child's confidence, enjoyment, and success at school. Fifth Grade: Provides practice at all the major topics for Grade 5 with emphasis on addition and subtraction of fractions and decimals. Includes a review of Grade 4 topics.

=> Learn more and LOOK INSIDE!

See more Math Made Easy books at Amazon