Square numbers

In mathematics, a square number or a perfect square is called an integer that is the square of an integer; in other words, it is the product of some integer with itself.

For example: 9 is a square number, since ita can be written as 3 × 3. 

These are always non-negative.

Here you have a picture showing some square numbers in a graph:

You can also practice with GeoGebra by clicking here.

And have a look at some interesting properties here.

Take care,

ALICIA