Q: Is 21,284 a Composite Number?
A: Yes, 21,284 is a composite number.
The number 21,284 can be evenly divided by 1 2 4 17 34 68 313 626 1,252 5,321 10,642 and 21,284, with no remainder.
Since 21,284 cannot be divided by just 1 and 21,284, it is a composite number.