Question

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

(i) 12, 15 and 21

(ii) 17, 23 and 29

(iii) 8, 9 and 25

Answer 1

Answer:

lcm is 420 and HCF is 1,3

lcm is 4669 and HCF is 1

lcm is 1350 and HCF is 1