The least perfect square, which is divisible by each of 21, 36 and 66 is
a. 213444 b. 214344 c. 214434 d. 231444
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Answer:
21 = 3 * 7
36 = 2 * 2 * 3 * 3
66 = 2 * 3 * 11
LCM= 2 * 2 * 3 * 3* 7 * 11
for it to become perfect square, multiply by 7 * 11
Number = (2 * 2 * 3 * 3* 7 * 11) * 7*11 =213444
a. 213444 b. 214344 c. 214434 d. 231444
Post your answer through comment..
Answer:
21 = 3 * 7
36 = 2 * 2 * 3 * 3
66 = 2 * 3 * 11
LCM= 2 * 2 * 3 * 3* 7 * 11
for it to become perfect square, multiply by 7 * 11
Number = (2 * 2 * 3 * 3* 7 * 11) * 7*11 =213444
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