Q. Find the HCF of the following:
(i) 24 and 36 (ii) 15, 25 and 30
(iii) 8 and 12 (iv) 12, 16 and 28
(i) 24 and 36
24 = 2 2 2 3
36 = 2 2 3 3
HCF = 2 2 3 = 12
(ii) 15, 25 and 30
15 = 3 5
25 = 5 5
30 = 2 3 5
HCF = 5
(iii) 8 and 12
8 = 2 2 2
12 = 2 2 3
HCF = 2 2 = 4
(iv) 12, 16 and 28
12 = 2 2 3
16 = 2 2 2 2
28 = 2 2 7
HCF = 2 2 = 4