Q: What is the negative version of the number 21,521,723?
A: -21,521,723
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:
| 21,521,721 | 21,521,722 | 21,521,724 | 21,521,725 |
| -21,521,721 | -21,521,722 | -21,521,724 | -21,521,725 |