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 printable worksheets for prime factorization or for finding all the factors of the given numbers. The problem sheets are randomly generated and customizable: you can choose the difficulty level, font size, spacing, and the number of problems.

The worksheets come with an answer key; however, you need to click to the answer key page immediately after generating a worksheet, because the answer key also is generated 'on the fly', and won't exist later on, should you come looking for it later.

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

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:    

Additional title
& instructions
(HTML allowed) 
Download 300+ free QUALITY math worksheets

Math Worksheets Menu
1st grade
2nd grade
3rd grade
4th grade
5th grade
6th grade

Addition worksheets
Number Charts
Multiplication worksheets
Division worksheets

Basic operations: addition,
subtraction, multiplication
and division (incl. integers)

Roman numerals
Place value &
scientific notation

  Time (clock)
Measuring units
Classify triangles
Classify quadrilaterals
Area & perimeter of rectangles
Area of triangles & polygons
Coordinate grid, moves, reflections

US Money
Canadian Money
Australian Money
British Money
European Money
South African Money

Fraction worksheets 1
Fraction worksheets 2
Comparing fractions
Equivalent fractions
Prime factorization / factors
Fraction Calculator
  Decimal worksheets
Decimal multiplication
Decimal division

Percent of number
Find percent
or percentage

Order of operations
Square Root

Ratio word problems
Order of operations
Variable expressions
Evaluate expressions
Linear equations

Equation calculator
Equation editor

Practice makes perfect. Practice math at IXL.com

Practice makes perfect. Practice math at IXL.com

Free math worksheets and practice - Adapted Mind