Math
posted by K on .
How many fivedigit integers are perfect squares?

The smallest 5digit number is 10000 and its squareroot is 100.
The largest 5digit number is 99999 and its squareroot is 316.23.
Thus the square of all integers between 100 and 316 inclusively will yield a perfect square between 10000 and 99999.
How many integers are there?