Q: What is the negative version of the number 278,666,421?
A: -278,666,421
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:
| 278,666,419 | 278,666,420 | 278,666,422 | 278,666,423 |
| -278,666,419 | -278,666,420 | -278,666,422 | -278,666,423 |