Question

The squares of which of the following would be odd numbers?

1. 431
2. 2826
3. 7779
4. 82004

Answer 1

Since the square of an even number is an even number and the square of an odd number is odd.

1. The given number 431 is odd. Hence, its square will be an odd number.
2. The given number 2826 is even. Hence, its square will be an even number.
3. The given number 7779 is odd. Hence, its square will be an odd number.
4. The given number 82004 is even. Hence, its square will be an even number.

Hence the numbers 431 and 7779 will be squares of odd numbers.