Q: Is 21,406 a Composite Number?
A: Yes, 21,406 is a composite number.
The number 21,406 can be evenly divided by 1 2 7 11 14 22 77 139 154 278 973 1,529 1,946 3,058 10,703 and 21,406, with no remainder.
Since 21,406 cannot be divided by just 1 and 21,406, it is a composite number.