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Q.4 Find the square roots of the following numbers by the Prime Factorisation Method.

(i) 729

Answers (1)

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By prime factorisation, we know that

$729 = 3\times3\times3\times3\times3\times3$

or $729 = (3\times3\times3)^{2} = 27^{2}$

Thus the square root of 729 is 27.

Posted by

Devendra Khairwa

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