Q: What is the negative version of the number 21,506,709?
A: -21,506,709
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:
| 21,506,707 | 21,506,708 | 21,506,710 | 21,506,711 |
| -21,506,707 | -21,506,708 | -21,506,710 | -21,506,711 |