CBSE Class 6 Maths Prime Time (Class 6 NCERT New) Quiz 1

1. The numbers that are multiples of both 3 and 5 are called:

A Factors B Common multiples C Prime numbers D Composite numbers

2. The first common multiple of 4 and 6 is:

A 8 B 10 C 12 D 24

3. Which of the following is a factor of 24?

A 5 B 7 C 8 D 11

4. Which of the following is a prime number?

A 21 B 29 C 35 D 39

5. The number 1 is:

A A prime number B A composite number C Neither prime nor composite D An even number

6. Which pair of numbers is co-prime?

A 12 and 18 B 15 and 25 C 8 and 9 D 21 and 35

7. The common factors of 20 and 30 are:

A 1, 2, 5, 10 B 2, 4, 6 C 5, 10, 15 D 1, 3, 6

8. A number having exactly two factors is called:

A Composite number B Prime number C Multiple D Factor

9. Which of the following numbers is divisible by 10?

A 456 B 785 C 920 D 333

10. The smallest number that is a multiple of 1, 2, 3, 4 and 5 is:

A 20 B 30 C 60 D 120