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Powers and Roots Practice Test 1
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© examsnet.com
Question : 7
Total: 40
The least perfect square, which is divisible by each of 21, 36, and 66 is:
231444
214434
214344
213444
Validate
Solution:
👈: Video Solution
LCM of 21, 36 and 66 is 2772.
Now 2772 = 2 x 2 × 3 x 3 × 7 × 11
Hence, required number = 2772 × 77 = 213444
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