Q: What is the negative version of the number 21,663,243?
A: -21,663,243
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:
| 21,663,241 | 21,663,242 | 21,663,244 | 21,663,245 |
| -21,663,241 | -21,663,242 | -21,663,244 | -21,663,245 |