Q: Is 1,640 a Composite Number?
A: Yes, 1,640 is a composite number.
The number 1,640 can be evenly divided by 1 2 4 5 8 10 20 40 41 82 164 205 328 410 820 and 1,640, with no remainder.
Since 1,640 cannot be divided by just 1 and 1,640, it is a composite number.