Question

Find the greatest number that will divide 18 and 48 without leaving a remainder.

Answer 1

Required number is the HCF of 18 and 48 .
18 = 2 $\times$ 3 $\times$ 3
48 = 2 $\times$ 2 $\times$ 2 $\times$ 2 $\times$ 3
HCF = 2 x 3 = 6
HCF of 18 and 48 is 6
The greatest number that will divide 18 and 48 without leaving a remainder is 6.