Q: Is 21,063 a Composite Number?
A: Yes, 21,063 is a composite number.
The number 21,063 can be evenly divided by 1 3 7 17 21 51 59 119 177 357 413 1,003 1,239 3,009 7,021 and 21,063, with no remainder.
Since 21,063 cannot be divided by just 1 and 21,063, it is a composite number.