Q: What is the negative version of the number 721,146,421?
A: -721,146,421
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:
| 721,146,419 | 721,146,420 | 721,146,422 | 721,146,423 |
| -721,146,419 | -721,146,420 | -721,146,422 | -721,146,423 |