Q: What is the negative version of the number 31,521,401?
A: -31,521,401
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:
| 31,521,399 | 31,521,400 | 31,521,402 | 31,521,403 |
| -31,521,399 | -31,521,400 | -31,521,402 | -31,521,403 |