Q: What is the negative version of the number 31,440,639?
A: -31,440,639
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:
| 31,440,637 | 31,440,638 | 31,440,640 | 31,440,641 |
| -31,440,637 | -31,440,638 | -31,440,640 | -31,440,641 |