Q: What is the negative version of the number 20,400,621?
A: -20,400,621
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:
| 20,400,619 | 20,400,620 | 20,400,622 | 20,400,623 |
| -20,400,619 | -20,400,620 | -20,400,622 | -20,400,623 |