Q: What is the negative version of the number 21,551,145?
A: -21,551,145
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:
| 21,551,143 | 21,551,144 | 21,551,146 | 21,551,147 |
| -21,551,143 | -21,551,144 | -21,551,146 | -21,551,147 |