Question

by what least number should following number be multiplied to become perfect square 1)4220 2)18225​

Answer 1

Answer:

1. Resolving into prime factors:

4225=25×169=5×5×13×13=5×13×5×13=65×65=(65)2

Thus, 4225 is a perfect square.

2. We will find the prime factors of 3645

3645 => 3 × 3 × 3 × 3 × 3 × 3 × 5

Here, 5 is not in pair.

5 should be multiplied to 3645

Check :-

3645 × 5 = 18225

Square root of 18225 is 135

Hence, proved.

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Answer 2

Answer:

answer is given above hope this answer will help you