Question

Find the LCM and HCF of the following integers by applying the prime factorisation method.

8, 9 and 25

Answer 1

8 = 2 × 2 × 2

9 = 3 × 3

25 = 5 × 5

L.C.M of 8, 9 and 25 = `2^2xx3^2xx5^2`

L.C.M of 8, 9 and 25 = 1800

H.C.F of 8, 9 and 25 = 1