Q: What is the negative version of the number 21,370,809?
A: -21,370,809
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:
| 21,370,807 | 21,370,808 | 21,370,810 | 21,370,811 |
| -21,370,807 | -21,370,808 | -21,370,810 | -21,370,811 |