Q: Is 21,008,209 a Composite Number?

 A: Yes, 21,008,209 is a composite number.

Why is 21,008,209 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 21,008,209 can be evenly divided by 1 17 29 43 493 731 991 1,247 16,847 21,199 28,739 42,613 488,563 724,421 1,235,777 and 21,008,209, with no remainder.

Since 21,008,209 cannot be divided by just 1 and 21,008,209, it is a composite number.


More Examples

Number 21,008,20721,008,20821,008,21021,008,211
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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