Q: What is the negative version of the number 172,420,621?
A: -172,420,621
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:
| 172,420,619 | 172,420,620 | 172,420,622 | 172,420,623 |
| -172,420,619 | -172,420,620 | -172,420,622 | -172,420,623 |