Q: What is the negative version of the number 21,408,778?
A: -21,408,778
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:
| 21,408,776 | 21,408,777 | 21,408,779 | 21,408,780 |
| -21,408,776 | -21,408,777 | -21,408,779 | -21,408,780 |