Q: What is the negative version of the number 231,578,639?
A: -231,578,639
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:
| 231,578,637 | 231,578,638 | 231,578,640 | 231,578,641 |
| -231,578,637 | -231,578,638 | -231,578,640 | -231,578,641 |