Q: What is the negative version of the number 21,731,172?
A: -21,731,172
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:
| 21,731,170 | 21,731,171 | 21,731,173 | 21,731,174 |
| -21,731,170 | -21,731,171 | -21,731,173 | -21,731,174 |