Question

Without calculating the square of numbers show that the following numbers are not perfect square

Answer 1

Answer:

As we know that all perfect square numbers contain their unit place digits 0,1,4,5,6,9

(1) The number 153 has unit digit 3 , so it is not a perfect square.

(2) The number 257 contain unit digit as 7 so it is not a perfect square.

(3) The number 408 contain unit digit as 8 so it is not a perfect square.

(4) The number 441 contain unit digit 1 so it can be a perfect square.

So 153,257, and 408 surly not perfect square.

Step-by-step explanation:

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