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The least perfect square number which is divisible by each of 21, 36 and 66 is (a) 213444 (b) 214344 (c) 214434 (d) 231444

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The least perfect square number which is divisible by each of 21, 36 and 66 is 

(a) 213444 

(b) 214344 

(c) 214434 

(d) 231444

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1 Answer

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Best answer

(b) 214344

LCM of 21, 36 and 66 = 2772

\(\therefore\) Least perfect square number

= (22 x 32 x 7 x 11) x 7 x 11 = 213444

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