Q: What is the negative version of the number 21,561,641?
A: -21,561,641
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:
| 21,561,639 | 21,561,640 | 21,561,642 | 21,561,643 |
| -21,561,639 | -21,561,640 | -21,561,642 | -21,561,643 |