Q: Is 21,403,473 a Composite Number?

 A: Yes, 21,403,473 is a composite number.

Why is 21,403,473 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 21,403,473 can be evenly divided by 1 3 7 13 21 39 91 273 78,401 235,203 548,807 1,019,213 1,646,421 3,057,639 7,134,491 and 21,403,473, with no remainder.

Since 21,403,473 cannot be divided by just 1 and 21,403,473, it is a composite number.


More Examples

Number 21,403,47121,403,47221,403,47421,403,475
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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