Q: What is the negative version of the number 21,510,717?
A: -21,510,717
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:
| 21,510,715 | 21,510,716 | 21,510,718 | 21,510,719 |
| -21,510,715 | -21,510,716 | -21,510,718 | -21,510,719 |