Prime and Composite Numbers Worksheet
A Grade 7 math worksheet focusing on identifying, differentiating, and understanding prime and composite numbers.
Includes
Standards
Topics
Prime and Composite Numbers
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Date:
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Read each question carefully and follow the instructions. Show your work where necessary.
1. Which of the following numbers is a prime number?
27
39
41
51
2. Which of the following numbers is a composite number?
13
29
47
63
3. A prime number has exactly two factors: and itself.
4. A composite number has than two factors.
5. The number is neither prime nor composite.
6. All even numbers are composite.
True
False
7. The number 17 is a prime number.
True
False
8. List all the prime numbers between 20 and 40.
9. Explain why the number 25 is a composite number.
10. On the number line below, circle all the prime numbers.
Use the words below to complete the sentences.
11. Numbers that have more than two are called composite numbers.
12. A number can only be divided evenly by 1 and itself.