Q: What is the negative version of the number 21,780,129?
A: -21,780,129
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:
| 21,780,127 | 21,780,128 | 21,780,130 | 21,780,131 |
| -21,780,127 | -21,780,128 | -21,780,130 | -21,780,131 |