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1. The least perfect square, which is divisible by each of 21, 36 and 66 is:





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  • By: guest on 01 Jun 2017 05.48 pm
    L.C.M. of 21, 36, 66 = 2772. Now, 2772 = 2 x 2 x 3 x 3 x 7 x 11 To make it a perfect square, it must be multiplied by 7 x 11. So, required number = 22 x 32 x 72 x 112 = 213444
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