Q: What is the negative version of the number 216,421,405?
A: -216,421,405
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:
| 216,421,403 | 216,421,404 | 216,421,406 | 216,421,407 |
| -216,421,403 | -216,421,404 | -216,421,406 | -216,421,407 |