CBSE Class 6 Mathematics Prime Time MCQs Set C

Question. Which of the following numbers is not a composite number?
(a) 9
(b) 12
(c) 17
(d) 20

Answer: C

Question. Two numbers are co-prime if they have no common factor other than
(a) 2
(b) 5
(c) 1
(d) 0

Answer: C

Question. A composite number is one that has
(a) Only two factors
(c) No factors
(c) More than two factors
(d) None of the above

Answer: C

Question. 2024 is a leap year because it is a multiple of
(a) 2
(b) 4
(c) 5
(d) 10

Answer: B

Question. A prime number between 30 and 40 is:
(a) 31
(b) 32
(c) 33
(d) 34

Answer: A

Question. The pair of numbers 4 and 9 is
(a) Prime
(b) Co-prime
(c) Multiples
(d) Even

Answer: B

Question. What is the product of the first two prime numbers?
(a) 2
(b) 3
(c) 5
(d) 6

Answer: D

Question. Numbers divisible by 2 end with 0, 2, 4, 6 or
(a) 5
(b) 9
(c) 8
(d) 3

Answer: C

Question. Which of the following is not the common multiple of 2 and 5?
(a) 10
(b) 15
(c) 20
(d) 30

Answer: B

Question. Smallest difference between two successive primes is
(a) 1
(b) 2
(c) 0
(d) 5

Answer: A

Question. How many factors does 100 have?
(a) 5
(b) 9
(c) 10
(d) 12

Answer: B

Question. Is 8560 divisible by 10?
(a) Yes
(b) No
(c) Maybe
(d) Only on Sunday

Answer: A

Question. Which number is divisible by 8?
(a) 1244
(b) 1300
(c) 1456
(d) 1700

Answer: C

Question. If last three digits are divisible by 8, then whole number is divisible by
(a) 2
(b) 4
(c) 8
(d) 10

Answer: C

Question. What should players say in the Idli-Vada game for the first common multiple of 3 and 5?
(a) Idli
(c) Vada
(c) Idli-Vada
(d) Nothing

Answer: C

Question. The factors of a prime number are 1 and
(a) Zero
(b) 10
(c) Number itself
(d) 2

Answer: C

Question. Which pair of numbers is NOT co-prime?
(a) 7 and 9
(b) 11 and 17
(c) 8 and 10
(d) 5 and 13

Answer: C

Question. How many prime numbers are there from 21 to 30?
(a) 2
(b) 5
(c) 8
(d) 3

Answer: A

Question. What is the prime factorization of 100?
(a) 10 × 10
(b) 2 × 2 × 5 × 5
(c) 20 × 5
(d) 4 × 25

Answer: B

Question. The pair 4 and 9 is safe because they are
(a) Co-prime
(b) Prime numbers
(c) Even numbers
(d) Big numbers

Answer: A