Question

1. Find the square root of each of the following numbers by Prime

Factorisation Method.

1) 729 2) 7744 3) 8100

4) 10404 5) 3136


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Answer 1

Answer:

Finding square root by prime factorisation method -

(i)729

=3² × 3²× 3²

=27

(ii)7744

= 2² × 2² × 2² ×11²

→88

(iii)8100

=90²

→90

(iv) 10404

=2² × 3²× 17²

→102

(v)3136

= 2² × 2² × 2² × 7²

→56