Q: What is the negative version of the number 18,721,515?
A: -18,721,515
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:
| 18,721,513 | 18,721,514 | 18,721,516 | 18,721,517 |
| -18,721,513 | -18,721,514 | -18,721,516 | -18,721,517 |