Q: What is the negative version of the number 21,639,824?
A: -21,639,824
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:
| 21,639,822 | 21,639,823 | 21,639,825 | 21,639,826 |
| -21,639,822 | -21,639,823 | -21,639,825 | -21,639,826 |