Question

Which one of the following can't be the square of natural number ?

• A. $143642$
• B. $27859$
• C. $57896$
• D. $27896$

Answer 1

The correct option is A $143642$

As we know that all the perfect square number ends with $1,4,9,6,5,00$

$\therefore$ 143642 is not the square of natural number because it ends with 2.