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Find the smallest perfect square divisible by 3, 4, 5 and 6.

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Find the smallest perfect square divisible by 3, 4, 5 and 6.

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L.C.M. of 3, 4, 5, 6 = 2 x 2 x 3 x 5 = 60

in which 3 and 5 are not in pairs L.C.M. = 2 x 3 x 2 x 5 = 60 

We should multiple it by 3 x 5 

i.e. by 15 Required perfect square = 60 x 15 = 900

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