Question
The squares of which of the following would be odd numbers?
(i) 431 (ii) 2826 (iii) 7779 (iv) 82004
Solution
Since the square of an odd natural number is odd and that of an even number is an even number.
∴ (i) The square of 431 is an odd number
(∵ 431 is an odd number)
(ii) The square of 2826 is an even nnumber.
(∵ 2826 is an odd number)
(iii) The square of 7779 is an odd number
(∵ 7779 is an odd number)
(iv) The square of 82004 is an even nnumber.
(∵ 82004 is an odd number)
