Question

how many Non-square lies between pairs

1. 7² and 8²
2. 205² and 220²​

Answer 1

1. There are 14 non-square numbers between ${7}^{2}$ and ${8}^{2}$.

2. There are 6,361 non-square numbers between ${205}^{2}$ and ${220}^{2}$.

Hope this helps.

Thanks.