Q: What is the negative version of the number 621,445,138?
A: -621,445,138
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:
| 621,445,136 | 621,445,137 | 621,445,139 | 621,445,140 |
| -621,445,136 | -621,445,137 | -621,445,139 | -621,445,140 |