Q: What is the negative version of the number 15,678,821?
A: -15,678,821
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:
| 15,678,819 | 15,678,820 | 15,678,822 | 15,678,823 |
| -15,678,819 | -15,678,820 | -15,678,822 | -15,678,823 |