Q: What is the negative version of the number 15,663,640?
A: -15,663,640
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:
| 15,663,638 | 15,663,639 | 15,663,641 | 15,663,642 |
| -15,663,638 | -15,663,639 | -15,663,641 | -15,663,642 |