Q: What is the negative version of the number 721,015,861?
A: -721,015,861
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:
| 721,015,859 | 721,015,860 | 721,015,862 | 721,015,863 |
| -721,015,859 | -721,015,860 | -721,015,862 | -721,015,863 |