Q: What is the negative version of the number 215,561,317?
A: -215,561,317
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:
| 215,561,315 | 215,561,316 | 215,561,318 | 215,561,319 |
| -215,561,315 | -215,561,316 | -215,561,318 | -215,561,319 |