Q: What is the negative version of the number 21,243,139?
A: -21,243,139
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:
| 21,243,137 | 21,243,138 | 21,243,140 | 21,243,141 |
| -21,243,137 | -21,243,138 | -21,243,140 | -21,243,141 |