Question

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

 8, 9 and 25

Answer 1

8, 9 and 25

Let us first find the factors of 8,9 and 25

`8=2^2`

`9=3^3`

`25=5^2`

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