wiz-icon
MyQuestionIcon
MyQuestionIcon
18
You visited us 18 times! Enjoying our articles? Unlock Full Access!
Question

Question 2 (iii)

The following number is obviously not a perfect square. Give reasons.

7928

Open in App
Solution

The square of any number generally has one of these digits 0, 1, 4, 5, 6 or 9 at its unit place.
Also, a number which is a perfect square may have even number of zeroes at its end.

7928 has its unit place digit as 8. Therefore, it cannot be a perfect square.


flag
Suggest Corrections
thumbs-up
10
Join BYJU'S Learning Program
Join BYJU'S Learning Program
CrossIcon