Question

Find the H. C . F of 100 and 225​

Answer 1

The factors of 100 are 1,2,4,5,10,20,25,50,100.

The factors of 225 are 1,3,5,9,15,25,45,75,225.

So, as we can see, the Greatest Common Factor or Divisor is 25.

Answer 2

100 = 2 × 2 × 5 × 5

225 = 3 × 3 × 5 × 5

Therefore, HCF = 5 × 5 = 25

Hope it helps you dear.