Q: What is the negative version of the number 21,643,615?
A: -21,643,615
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:
| 21,643,613 | 21,643,614 | 21,643,616 | 21,643,617 |
| -21,643,613 | -21,643,614 | -21,643,616 | -21,643,617 |