Q: What is the negative version of the number 21,731,517?
A: -21,731,517
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:
| 21,731,515 | 21,731,516 | 21,731,518 | 21,731,519 |
| -21,731,515 | -21,731,516 | -21,731,518 | -21,731,519 |