Question

2. Find the HCF of the following numbers by prime factorisation. a) 21,45 b) 153, 27 c) 38, 361 d) 36, 72, 84 e) 75,25, 120 f) 112, 140, 168​

Answer 1

Answer:

hcf of 21,45 is 3

hcf of 153,27 is 3

hcf of 38,361 is 19

hcf 36,72 and 84 is 4

hcf of 75,25 and 140 is 5

hcf of 112,140 and 168 is 2