Q: What is the negative version of the number 15,631,391?
A: -15,631,391
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:
| 15,631,389 | 15,631,390 | 15,631,392 | 15,631,393 |
| -15,631,389 | -15,631,390 | -15,631,392 | -15,631,393 |