Question

find lcm amd hcf of 18,24,54 by prime factorisation​

Answer 1

Prime Factorization :

18=2*3*3

24=2*2*2*3

54=2*3*3*3

Hence common factor of all is the HCF which is 2*3=6

And remaining number after 6and including common number each time will give LCM which is 2*2*2*3*3*3

216

Hope it will help you