What Is the Last Largest Number You Can Count To?

If you started to count today and continued counting day and night, without stopping, for the rest of your life, you would never get to a last number, because there isn’t one.

Mathematicians tells us that no matter how large a number you would get to, there would always still be one larger.

This idea is important in science and has a special name, infinity, and its own special symbol, ∞.