Q: Is 221,220,021 a Composite Number?

 A: Yes, 221,220,021 is a composite number.

Why is 221,220,021 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 221,220,021 can be evenly divided by 1 3 11 19 33 57 209 389 627 907 1,167 2,721 4,279 7,391 9,977 12,837 17,233 22,173 29,931 51,699 81,301 189,563 243,903 352,823 568,689 1,058,469 3,881,053 6,703,637 11,643,159 20,110,911 73,740,007 and 221,220,021, with no remainder.

Since 221,220,021 cannot be divided by just 1 and 221,220,021, it is a composite number.


More Examples

Number 221,220,019221,220,020221,220,022221,220,023
Composite? yesyesyesyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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