Question

Find the square root of the following numbers by prime factorisation method.
6561​

Answer 1

Answer:

Answer:Explanation:

Answer:Explanation: To find square root of 6561 , we should first factorize it. From divisibility rules, it is apparent that it is divisible by 3 and dividing by 3 , we get 2187 , which is again divisible by 3 and dividing by 3 , we get 729 .Jun 8, 2016

Answer 2

Answer:

9×9×9×9.=81×81 =81^2

Step-by-step explanation:

Because 6561 is square of 81.

81 ×81 =6561.

So the root square of 6561 is 81.

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