Navodaya Maths Quiz – 18 Factors and Multiples English Medium Class 6

The least number which is exactly divisible by the numbers 6, 8 and 9 is

(1) 71

(2) 72

(3) 80

(4) 90

Which one of the following is correct about all the factors of 46 ?

(1) 1, 2, 23, 46

(2) 1, 2, 4, 6, 4, 46

(3) 1, 2, 46, 34

(4) All of these

Among the following numbers, which are common multiples of 18 and 54 ?

(1) 32 and 48

(2) 54 and 72

(3) 48 and 72

(4) 54 and 108

Consider the following statements.

(i) Every number is a factor of itself.

(ii) Every number is a multiple of itself.

Which statement is the correct?

(1) Only (i)

(2) Only(ii)

(3) Both (i) and (ii)

(4) Neither (i) nor (ii)

The sum of all the prime factors of (m) is 10. Find the number (m).

(1) 15

(2) 20

(3) 28

(4) 63

The difference between ten’s digit and unit’s digit of the sum of the first five multiples of 6 is –

(1) 6

(2) 7

(3) 8

(4) 9

Which statement is true for 11 and 21?

(1) Both are divisible numbers

(2) Both are even numbers

(3) Both are co-prime numbers

(4) Both are multiples of 3

Given that the common multiple of 16 and 48 is p.  The value of p is

(1) 96

(2) 32

(3) 80

(4) 112

The sum of the factors of 81 is –

(1) 141

(2) 121

(3) 110

(4) 114

The relation of which of the given series is such that the numbers are the squares of the prime numbers ?

(1) 4, 6, 9, 13…

(2) 4, 9, 25, 81…..

(3) 4, 9, 25, 49, 121…

(4) None of these