Q: What is the negative version of the number 643,521,717?
A: -643,521,717
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:
| 643,521,715 | 643,521,716 | 643,521,718 | 643,521,719 |
| -643,521,715 | -643,521,716 | -643,521,718 | -643,521,719 |