Q: What is the negative version of the number 20,172,109?
A: -20,172,109
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:
| 20,172,107 | 20,172,108 | 20,172,110 | 20,172,111 |
| -20,172,107 | -20,172,108 | -20,172,110 | -20,172,111 |