Q: What is the negative version of the number 21,800,421?
A: -21,800,421
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:
| 21,800,419 | 21,800,420 | 21,800,422 | 21,800,423 |
| -21,800,419 | -21,800,420 | -21,800,422 | -21,800,423 |