Q: What is the negative version of the number 21,315,549?
A: -21,315,549
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:
| 21,315,547 | 21,315,548 | 21,315,550 | 21,315,551 |
| -21,315,547 | -21,315,548 | -21,315,550 | -21,315,551 |