Q: What is the negative version of the number 21,609,518?
A: -21,609,518
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:
| 21,609,516 | 21,609,517 | 21,609,519 | 21,609,520 |
| -21,609,516 | -21,609,517 | -21,609,519 | -21,609,520 |