Q: What is the negative version of the number 21,645,615?
A: -21,645,615
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:
| 21,645,613 | 21,645,614 | 21,645,616 | 21,645,617 |
| -21,645,613 | -21,645,614 | -21,645,616 | -21,645,617 |