Q: What is the negative version of the number 215,404,621?
A: -215,404,621
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:
| 215,404,619 | 215,404,620 | 215,404,622 | 215,404,623 |
| -215,404,619 | -215,404,620 | -215,404,622 | -215,404,623 |