Q: What is the negative version of the number 21,551,423?
A: -21,551,423
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:
| 21,551,421 | 21,551,422 | 21,551,424 | 21,551,425 |
| -21,551,421 | -21,551,422 | -21,551,424 | -21,551,425 |