Question

Question 63

State whether the following statement is true or false:

1000 is a perfect square.

Answer 1

False
$1000=2\times 2\times 2\times 5\times 5\times 5=2^2\times 5^2\times 2\times 5$
Clearly, it is not a perfect square, because it has two unpaired factors 2 and 5.