Multiple Choice Question (MCQ)
Which of the following integers is perfect square?

×
1087

×
24653

×
88888

×
101010

✓
None of these is perfect square
Which of the following integers is perfect square?
1087
24653
88888
101010
None of these is perfect square
In summary, none these numbers is perfect square
The ending digit of a perfect square is among 0, 1, 4, 5, 6 or 9.
The last digit of 1087 is 7. Therefore, it's not a perfect square.
24653
3 is not any of the ending digit of a perfect square, which is not one of 0, 1, 4, 5, 6 or 9.
Therefore, it's not a perfect square.
88888
8 is not any of the ending digit of a perfect square, which is not one of 0, 1, 4, 5, 6 or 9.
Therefore, it's not a perfect square.
101010
0 is one of the ending digit of a perfect square.
Factorizing the number yields
101010
= 10\times 10101
= 10\times 3\times 3367
= 10\times 3\times 7\times13\times37
It shows 101010 is not a perfect square.