Q: What is the negative version of the number 21,721,007?
A: -21,721,007
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:
| 21,721,005 | 21,721,006 | 21,721,008 | 21,721,009 |
| -21,721,005 | -21,721,006 | -21,721,008 | -21,721,009 |