Q: What is the negative version of the number 31,221,421?
A: -31,221,421
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:
| 31,221,419 | 31,221,420 | 31,221,422 | 31,221,423 |
| -31,221,419 | -31,221,420 | -31,221,422 | -31,221,423 |