Q: What is the negative version of the number 21,815,724?
A: -21,815,724
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:
| 21,815,722 | 21,815,723 | 21,815,725 | 21,815,726 |
| -21,815,722 | -21,815,723 | -21,815,725 | -21,815,726 |