Practice Questions "Special Numbers"

One of the factor pair of 36 is

• 2 and 18

• 3 and 8

• 1 and 34

The 6th multiple of 4 is ____

• 18

• 24

• 36

The first five prime numbers are

• 1,2,3,5,7

• 2,3,5,7,9

• 2,3,5,7,11

15 is a multiple of 3 and 9

• True

• False

18 is a multiple of these numbers

• 2, 3 and 9

• 2 and 4

• 2 , 4 and 8

 33, 49, 41, 45

Which of the given numbers is prime?

• 39

• 36

• 41

• 45

Find 1 multiples of 8 between 40 and 50.

• 42

• 46

• 48

Find 2 multiples of 8 between 60 and 75.

• 64 and 72

• 64 and 80

• 48 and 64

How many factors number 12 has?

4 or 6

1 2 4 5

Which os the number (s) are common factor of 16 and 20

• 4 and 5

• 1 and 4

• 1 and 5

• 1 , 2 and 4