Q: What is the negative version of the number 644,141,309?
A: -644,141,309
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:
| 644,141,307 | 644,141,308 | 644,141,310 | 644,141,311 |
| -644,141,307 | -644,141,308 | -644,141,310 | -644,141,311 |