Q: What is the negative version of the number 81,457,139?
A: -81,457,139
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:
| 81,457,137 | 81,457,138 | 81,457,140 | 81,457,141 |
| -81,457,137 | -81,457,138 | -81,457,140 | -81,457,141 |