Q: Is 21,258 a Composite Number?
A: Yes, 21,258 is a composite number.
The number 21,258 can be evenly divided by 1 2 3 6 9 18 1,181 2,362 3,543 7,086 10,629 and 21,258, with no remainder.
Since 21,258 cannot be divided by just 1 and 21,258, it is a composite number.