Q: What is the negative version of the number 21,581,860?
A: -21,581,860
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:
| 21,581,858 | 21,581,859 | 21,581,861 | 21,581,862 |
| -21,581,858 | -21,581,859 | -21,581,861 | -21,581,862 |