Find the LCM as a product of prime numbers

Question 1:

A = 2 2 ×3×5 B = 2 2 × 3 3

LCM = 2 2 × 3 3 ×5

Question 2:

A = 2 2 × 3 2 B = 2 3 ×3×5

LCM = 2 3 × 3 2 ×5

Question 3:

A = 2 4 ×5 B = 2×3×5

LCM = 2 4 ×3×5

Question 4:

A = 2 5 ×5 B = 2 2 × 5 2

LCM = 2 5 × 5 2