Q: What is the negative version of the number 21,581,745?
A: -21,581,745
Negative numbers are usually written with - in front of them. They represent a number that is less than zero.
Here are more examples of negative numbers in sequence:
| 21,581,743 | 21,581,744 | 21,581,746 | 21,581,747 |
| -21,581,743 | -21,581,744 | -21,581,746 | -21,581,747 |