Find the LCM as a product of prime numbers

Question 1:

A = 2 2 × 5 2 B = 5 3

LCM = 2 2 × 5 3

Question 2:

A = 2× 5 2 B = 2 3 ×5

LCM = 2 3 × 5 2

Question 3:

A = 2 3 ×5 B = 2×3× 5 2

LCM = 2 3 ×3× 5 2

Question 4:

A = 2× 3 4 B = 2× 3 2 ×5

LCM = 2× 3 4 ×5