Prime and Composite Numbers/ Class 6 Maths/Worksheets

Prime and composite numbers/Class 6 Mathematics/Worksheets is about the Model Questions that you can expect for Yearly Examination. Here you can find out practice problems for Class 6 Mathematics. This worksheet is designed for Class 6 Math students.

Prime and Composite Numbers/ Class 6 Mathematics/MCQ
Model Questions/Extra Questions for Practice/Worksheets
Choose the correct answer from the options given below:

1. Which is the smallest two digit prime number?
   A. 10
   B. 11
   C. 13
2. Which number is neither prime nor composite?
   A. 1
   B. 2
   C. 0
3. Prime numbers have exactly ———– factors.
   A. One
   B. Two
   C. No factors
4. Composite numbers have more than ——— factors.
   A. One
   B. Two
   C. Three
5. The smallest prime number is ———–
   A. 1
   B. 2
   C. 3
6. The smallest odd prime number is —————
   A. 1
   B. 3
   C. 5
7. The smallest composite number is —————-
   A. 2
   B. 3
   C. 4
8. If two numbers have only 1 as a common factor, they are called ——
   A. Prime numbers
   B. Co-prime numbers
   C. Composite numbers
9. How many prime numbers are there in between 1 and 20?
   A. 7
   B. 8
   C. 9
10. Which is the largest two digit prime number?
    A. 97
    B. 98
    C. 99
11. How many prime numbers are there in between 30 and 50?
    A. 4
    B. 5
    C. 6
12. Which is the largest 3 digit prime number?
    A. 999
    B. 998
    C. 997
13. A number which has only two factors is called a ————-
    A. Prime number
    B. Composite number
    C. Co-prime numbers
14. A number which has more than two factors are called ————-
    A. Prime numbers
    B. Composite numbers
    C. Co-prime numbers
15. How many prime numbers are there in between 1 and 100?
    A. 20
    B. 25
    C. 28
16. Which is the only even prime number?
    A. 2
    B. 4
    C. 6
17. The smallest prime number which is even is ————
    A. 2
    B. 4
    C. 6
18. Which is the greatest prime number between 1 and 10?
    A. 5
    B. 7
    C. 9
19. Two prime numbers whose difference is 2 are called ————–
    A. Co-prime numbers
    B. Twin primes
    C. Composite numbers
20. Every prime number other than —– is odd.
    A. 2
    B. 4
    C. 6

ANSWERS:

1. 11
2. 1
3. Two
4. Two
5. 2
6. 3
7. 4
8. Co-prime numbers
9. 8
10. 97
11. 5
12. 997
13. Prime numbers
14. Composite numbers
15. 25
16. 2
17. 2
18. 7
19. Twin primes
20. 2