Q: What is the negative version of the number 21,171,617?
A: -21,171,617
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:
| 21,171,615 | 21,171,616 | 21,171,618 | 21,171,619 |
| -21,171,615 | -21,171,616 | -21,171,618 | -21,171,619 |