Q: What is the negative version of the number 21,551,789?
A: -21,551,789
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:
| 21,551,787 | 21,551,788 | 21,551,790 | 21,551,791 |
| -21,551,787 | -21,551,788 | -21,551,790 | -21,551,791 |