Question

Find HCF of the following by listing the factors.

i. 18,21 ii. 27,63​

Answer 1

$\huge\mathtt\pink{Answer}$

i) 18 - 1 , 2 , 3 , 6 , 18

21 - 1 , 3 , 7 , 21

So hcf = 3

ii) 27 = 1 , 3 , 9 , 27

63 = 1 , 3 , 9

So hcf = 3×9 = 27