Q: What is the negative version of the number 21,405,859?
A: -21,405,859
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:
| 21,405,857 | 21,405,858 | 21,405,860 | 21,405,861 |
| -21,405,857 | -21,405,858 | -21,405,860 | -21,405,861 |