Question

Find the smallest number by which 405 must be divided so as to get perfect square.Also find the square root of the square number so obtained.​

Answer 1

Answer:

5

Step-by-step explanation:

the smallest number by which 405 must be divided so as to get a perfect square is 5.

by factorizing the number 405 we will get 5x3x3x3x3

now,pair them

5 is the only number not having pair so it is the answer

Hope it helps

Answer 2

prime factors of 405 = 3×3×3×3×5

5 has no pair therefore

number should be divided by 5

= 405 ÷ 5 = 81

= sq. root of 81 = 9

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