Factors and Multiples Self Check

In 7 × 3 = 21, 21 is a ____________ of 7 and 3.

• Factor

• Multiples

• Sum

• Difference

In 12 × 7 = 84, 12 and 7 are ____________ of 84.

• Factors

• Multiples

• Both a and b

• Neither a nor b

8 is a factor of ____________.

• 14

• 36

• 48

• None of these

9 is a multiple of ___________

• 2

• 4

• 6

• 3

The L.C.M. of 8 and 12 is ____________.

• 5 and 10

• 1 and 5

• 10 and 15

• 24

Every natural number is the greatest multiple of itself. 

• True

• False

Every factor of a number is equal to or greater than that number.

• False

• True

A given number is divisible by 3 if the sum of its digits is divisible by 3.

• True

• False

3, 6, 10, 12, 16 are all multiples of 3.     

• False

• True

The H.C.F. of 12 and 18 is 6.

• True

• False