Q: What is the negative version of the number 21,178,540?
A: -21,178,540
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:
| 21,178,538 | 21,178,539 | 21,178,541 | 21,178,542 |
| -21,178,538 | -21,178,539 | -21,178,541 | -21,178,542 |