Que: If a number is 2² x 3¹ x 5⁰ and b is 2¹ x 3¹ x 5¹ then lcm of a, b is?

a. 2² x 3¹ x 5¹
b. 2² x 3² x 5²
c. 2³ x 3¹ x 5⁰
d. 2² x 3² x 5⁰
Answer: 2² x 3¹ x 5¹

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