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Square root and cube root

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  1. The least perfect square number divisible by 3, 4, 5, 6, 8 is ?
    1. 900
    2. 1200
    3. 2500
    4. 3600
Correct Option: D

L. C. M of 3, 4, 5, 6, 8 is 120
Now, 120 = 2 x 2 x 2 x 3 x 5
∴ Required number = (2 x 2 x 2 x 3 x 5) x (2 x 3 x 5)
= 3600


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