Q: What is the negative version of the number 421,221,421?
A: -421,221,421
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:
| 421,221,419 | 421,221,420 | 421,221,422 | 421,221,423 |
| -421,221,419 | -421,221,420 | -421,221,422 | -421,221,423 |