Q: What is the negative version of the number 644,304,738?
A: -644,304,738
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:
| 644,304,736 | 644,304,737 | 644,304,739 | 644,304,740 |
| -644,304,736 | -644,304,737 | -644,304,739 | -644,304,740 |