Q: Is 21,147 a Composite Number?

 A: Yes, 21,147 is a composite number.

Why is 21,147 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 21,147 can be evenly divided by 1 3 7 19 21 53 57 133 159 371 399 1,007 1,113 3,021 7,049 and 21,147, with no remainder.

Since 21,147 cannot be divided by just 1 and 21,147, it is a composite number.


More Examples

Number 21,14521,14621,14821,149
Composite? yesyesyesno
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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