Prime Factorization
A worksheet for grade 4 students on prime factorization, including identifying prime numbers and creating factor trees.
Includes
Standards
Topics
Prime Factorization Worksheet
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Show your work where required.
1. Which of the following numbers is a prime number?
9
15
13
21
2. A prime number has exactly how many factors?
One
Two
Three
Many
Fill in the blank with 'prime' or 'composite'.
3. The number 7 is a number.
4. The number 10 is a number.
5. Complete the factor tree for the number 18. Write the prime factorization below.
Prime factorization of 18:
6. Create a factor tree for the number 24 and write its prime factorization.
Prime factorization of 24:
7. The prime factorization of a number is unique.
True
False
Related Worksheets
Grade 4 Patterning Worksheet
Explore and identify various number and shape patterns with this Grade 4 math worksheet, including identifying rules and completing sequences.
Writing Three-Digit Numbers
Practice writing three-digit numbers in standard form, word form, and expanded form.
Ordering Three-Digit Numbers
Practice ordering three-digit numbers from least to greatest and greatest to least.
Adding Integers Worksheet
Practice adding positive and negative integers using number lines and simple equations.
Place Value: Hundred Thousands
Practice identifying and understanding place value up to the hundred thousands place for fourth graders.
Number Families Worksheet
Explore number families with this Grade 4 math worksheet, focusing on addition, subtraction, multiplication, and division relationships.
Quantity Comparison Worksheet
A Grade 4 math worksheet focusing on comparing quantities using greater than, less than, and equal to symbols, including number lines and word problems.
Rounding Numbers Worksheet
Practice rounding whole numbers to the nearest ten, hundred, and thousand for Grade 4 math.