Which one of the following can't be the square of natural number ? Choose the correct option.
A) 465456  B) 656565  C) 521213  D) 143642  E) 643212
The square of a natural number nerver ends in 2.   143642 is not the square of natural number.   Correct Option is 143642
<result>D</result>
Which one of the following can't be the square of natural number ?