Questions with Answers on Prime and Composite Numbers for Grade 5

Questions

1. True or False: All prime numbers are odd.
2. What is the smallest prime number?
3. True or False: All even numbers greater than 2 are composite.
4. Which of the following numbers is prime?
   
   1. 12
   2. 6
   3. 9
   4. 7
   
   
   
5. Which of the following numbers is composite?
   
   1. 21
   2. 2
   3. 13
   4. 11
   
   
   
6. Which of the following numbers is prime?
   
   1. 27
   2. 31
   3. 1
   4. 39
   
   
   
7. Which of the following numbersis composite?
   
   1. 1
   2. 57
   3. 17
   4. 41
   
   
   
8. Which number is neither prime nor composite?
   
   1. 15
   2. 41
   3. 18
   4. 1
   
   
   
9. Which is prime and which is composite?
   
   1. 16
   2. 24
   3. 29
   4. 30
   5. 31
   6. 33
   7. 81
   8. 97
   9. 100
   10. 101
   
   
10. List all prime numbers from 2 to 31.

Answers to the Above Questions

1. False , 2 is even and prime.


2. 2


3. True , because all even numbers are divisible by 2.


4. 7


5. 21


6. 31


7. 57
   
8. 1
   
9. 
   prime: 29 , 31 , 97 , 101
   composite: 16 , 24 , 30 , 33 , 81 , 100
   
10. 2 , 3 , 5 , 7 , 11 , 13 , 17 , 19 , 23 , 29 , 31

More References and links

Primary Math (grades 4 and 5) with Free Questions and Problems With Answers
Middle School Math (grades 6,7,8 and 9) with Free Questions and Problems With Answers
High School Math (Grades 10, 11 and 12) - Free Questions and Problems With Answers
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