CBSE Class 6 Mathematics Prime Time MCQs Set H

Question. Numbers divisible by 10 must end with
(a) 5
(b) 1
(c) 0
(d) 2

Answer: C

Question. Which number has the prime factorisation 2 × 2 × 3 × 3?
(a) 18
(b) 36
(c) 72
(d) 12

Answer: B

Question. Jumpy choosing jump size 4 will land on 24 because 4 is a
(a) Multiple
(b) Factor
(c) Prime
(d) Odd number

Answer: B

Question. Which of the following statements is true?
(a) All prime numbers are even
(b) The number 1 is a prime number.
(c) All composite numbers are greater than 1.
(d) The number 2 is a composite number.

Answer: C

Question. Sum of two even numbers is sometimes a multiple of
(a) 3
(b) 4
(c) 5
(d) 10

Answer: B

Question. What is the largest prime number less than 20?
(a) 19
(b) 18
(c) 17
(d) 16

Answer: A

Question. Smallest 4-digit palindrome divisible by 4, as per the book, is
(a) 1001
(b) 2002
(c) 4004
(d) 8008

Answer: A

Question. Which of the following is the smallest prime number greater than 20?
(a) 21
(b) 23
(c) 25
(d) 27

Answer: B

Question. Find the common factors of 20 and 28.
(a) 1, 2, 4
(b) 1, 5
(c) 2, 3
(d) 4, 5

Answer: A

Question. A number is divisible by 5, if it has
(a) Only 0 in its ones place
(b) 0 in its tens place
(c) 0 or 5 in its ones place
(d) 5 in its ones place

Answer: C

Question. After 15, the next number to say Idli-Vada will be
(a) 20
(b) 30
(c) 25
(d) 18

Answer: B

Question. How many prime numbers are there between 1 and 10?
(a) 4
(c) 5
(c) 6
(d) 7

Answer: A

Question. First number for which the players say Idli-Vada is
(a) 3
(b) 5
(c) 15
(d) 10

Answer: C

Question. Which number is a perfect number?
(a) 6
(b) 12
(c) 28
(d) 36

Answer: C

Question. Jump size of 1 or 2 will land on both 14 and
(a) 15
(b) 36
(c) 7
(d) 10

Answer: B

Question. Prime factorization of 54 is:
(a) 2 × 27
(b) 2 × 3 × 9
(c) 54 × 1
(d) 2 × 3

Answer: D

Question. 75 is not divisible by 21 because 75 does not have prime factor
(a) 3
(b) 5
(c) 7
(d) 1

Answer: C

Question. The sum of two prime numbers is always:
(a) Even
(b) Odd
(c) Prime
(d) None of these

Answer: D

Question. If we play with 2 and 5, for common multiples we say
(a) Idli
(b) Vada
(c) Idli-Vada
(d) Dosa

Answer: C

Question. What is the least common multiple (LCM) of 4 and 6?
(a) 8
(b) 12
(c) 18
(d) 24

Answer: B