Q: What is the negative version of the number 13,513,221?
A: -13,513,221
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:
| 13,513,219 | 13,513,220 | 13,513,222 | 13,513,223 |
| -13,513,219 | -13,513,220 | -13,513,222 | -13,513,223 |