Q: What is the negative version of the number 21,015,151?
A: -21,015,151
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:
| 21,015,149 | 21,015,150 | 21,015,152 | 21,015,153 |
| -21,015,149 | -21,015,150 | -21,015,152 | -21,015,153 |