Q: Is 400,221 a Composite Number?
A: Yes, 400,221 is a composite number.
The number 400,221 can be evenly divided by 1 3 9 27 61 81 183 243 549 729 1,647 2,187 4,941 6,561 14,823 44,469 133,407 and 400,221, with no remainder.
Since 400,221 cannot be divided by just 1 and 400,221, it is a composite number.