Navodaya Maths Quiz – 20 Factors and Multiples English Medium Class 6

Multiply the third multiple of 12 by fourth multiple of 8, we get ________.
(1) 1058
(2) 1152
(3) 1096
(4) 1072

Number x is a factor of 88. If number x is a two digit number and the sum of the two digits is 8, what is number x ?
(1) 80
(2) 62
(3) 44
(4) 17

The difference of L.C.M. and H.C.F. of the numbers 40, 240 and 480 is equal to twice a number. Find the number.
(1) 340
(2) 440
(3) 220
(4) 880

Find the two consecutive odd numbers whose sum is 84.
(1) 21 and 63
(2) 31 and 53
(3) 41 and 43
(4) 51 and 33

Which of the following 1-digit number has 4 factors ?
(1) 6
(2) 5
(3) 7
(4) 9

The sum of the first four multiples of 6, is –
(1) 66
(2) 56
(3) 22
(4) 60

The number of numbers which are multiples of both 3 and 5 in the first 100 natural numbers is:
(1) 10
(2) 9
(3) 7
(4) 6

Find the two consecutive odd numbers whose sum is 64.
(1) 23 and 41
(2) 21 and 43
(3) 31 and 33
(4) 11 and 53

The sum of first five multiples of 6 is –
(1) 90
(2) 54
(3) 30
(4) 84

If p is a prime number such that (p+2) is also a prime number, then p(p+2)+ 1 is always –
(1) a prime number
(2) an odd integer
(3) not a perfect square
(4) a perfect square