Q: What is the negative version of the number 217,664,509?
A: -217,664,509
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:
| 217,664,507 | 217,664,508 | 217,664,510 | 217,664,511 |
| -217,664,507 | -217,664,508 | -217,664,510 | -217,664,511 |