Q: What is the negative version of the number 21,018,415?
A: -21,018,415
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:
| 21,018,413 | 21,018,414 | 21,018,416 | 21,018,417 |
| -21,018,413 | -21,018,414 | -21,018,416 | -21,018,417 |