Q: What is the negative version of the number 15,640,661?
A: -15,640,661
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:
| 15,640,659 | 15,640,660 | 15,640,662 | 15,640,663 |
| -15,640,659 | -15,640,660 | -15,640,662 | -15,640,663 |