Answer:
Using prime factorization,
12 = 2 × 2 × 3 => 22 × 3
15 = 3 × 5
18 = 2 × 3 × 3 => 2 × 32
27 = 3 × 3 × 3 => 33
HCF = 3
LCM = 22 × 33 × 5
LCM = 540
Answer:
Using prime factorization,
12 = 2 × 2 × 3 => 22 × 3
15 = 3 × 5
18 = 2 × 3 × 3 => 2 × 32
27 = 3 × 3 × 3 => 33
HCF = 3
LCM = 22 × 33 × 5
LCM = 540