Question

Find the LCM and HCF of the following by prime factorization
18, 15, 27​

Answer 1

Answer:

2|18,15,27

3|9,15,27

3|3,5,9

3|1,5,3

5|1,5,1

|1,1,1

2×3×3×3×5=270

lcm=270

18-1,2,3,9,18

15-1,5,15

27-1,3,9,27

hcf=1