find the least square number which is exactly divisible by 8 12 15 and 20 - Wikitechy https://www.wikitechy.com/interview-questions/tag/find-the-least-square-number-which-is-exactly-divisible-by-8-12-15-and-20/ Interview Questions Tue, 07 Sep 2021 06:30:25 +0000 en-US hourly 1 https://wordpress.org/?v=6.9 https://www.wikitechy.com/interview-questions/wp-content/uploads/2025/10/cropped-wikitechy-icon-32x32.png find the least square number which is exactly divisible by 8 12 15 and 20 - Wikitechy https://www.wikitechy.com/interview-questions/tag/find-the-least-square-number-which-is-exactly-divisible-by-8-12-15-and-20/ 32 32 The least perfect square, which is divisible by each of 21, 36 and 66 is ? https://www.wikitechy.com/interview-questions/square-root-and-cube-root/the-least-perfect-square-which-is-divisible-by-each-of-21-36-and-66-is/ https://www.wikitechy.com/interview-questions/square-root-and-cube-root/the-least-perfect-square-which-is-divisible-by-each-of-21-36-and-66-is/#respond Tue, 17 Aug 2021 11:12:26 +0000 https://www.wikitechy.com/interview-questions/?p=1760

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

A. 13414

B. 213424

C. 213434

D. 213444

Answer : D. 213444

Explanation:

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 = 2 x 2 x 3 x 3 x 7 x 7 x 11 x 11 = 213444

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