Q: What is the negative version of the number 21,531,823?
A: -21,531,823
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:
| 21,531,821 | 21,531,822 | 21,531,824 | 21,531,825 |
| -21,531,821 | -21,531,822 | -21,531,824 | -21,531,825 |