Q: What is the negative version of the number 21,031,309?
A: -21,031,309
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:
| 21,031,307 | 21,031,308 | 21,031,310 | 21,031,311 |
| -21,031,307 | -21,031,308 | -21,031,310 | -21,031,311 |