Question

What is the greatest number which divides 48, 64 and 72 exactly?​

Answer 1

Given:

What is the greatest number which divides 48, 64 and 72 exactly?​

To find:

The required number

Solution:

HCF of 48, 64, 72:

48 = 2 x 2 x 2 x 2 x 3

64 = 2 x 2 x 2 x 2 x 2 x 2

72 = 2 x 2 x 2 x 3 x 3

HCF of 48, 64, 72 = 2 x 2 x 2 = 8

Hence, the greatest number which divides 48, 64 and 72 exactly is 8.