Q: What is the negative version of the number 21,507,731?
A: -21,507,731
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:
| 21,507,729 | 21,507,730 | 21,507,732 | 21,507,733 |
| -21,507,729 | -21,507,730 | -21,507,732 | -21,507,733 |