Q: What is the negative version of the number 77,221,639?
A: -77,221,639
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:
| 77,221,637 | 77,221,638 | 77,221,640 | 77,221,641 |
| -77,221,637 | -77,221,638 | -77,221,640 | -77,221,641 |