Question

Observe the following numbers and state with reason(s) which of these cannot
be a perfect square.
1. 23480
2. 54002
3. 34029
5. 78067
6. 2404
4. 10609​

Answer 1

Answer:

1. bcoz it ends with odd no. of zero

2. 2 never comes at the last of any perfect square

4 perfect square