Q: What is the negative version of the number 21,351,137?
A: -21,351,137
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:
| 21,351,135 | 21,351,136 | 21,351,138 | 21,351,139 |
| -21,351,135 | -21,351,136 | -21,351,138 | -21,351,139 |