Q: What is the negative version of the number 21,157,559?
A: -21,157,559
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:
| 21,157,557 | 21,157,558 | 21,157,560 | 21,157,561 |
| -21,157,557 | -21,157,558 | -21,157,560 | -21,157,561 |