Question

$64000$ is obviously not a perfect square. Select appropriate reason from the options provided.

• A. The number doesn't have even number of zeros
• B. $64$ is not a perfect square
• C. the number has five digits
• D. None of the above
  

Answer 1

The correct option is A The number doesn't have even number of zeros

64000 is not a perfect square as the number of zeroes are odd. For a number ending with 0, to be a perfect square it should end with even number of zeroes.