Q: Is 21,311,113 a Composite Number?

 A: No, 21,311,113 is not a composite number; it is a prime number.

Why is 21,311,113 not 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 21,311,113 can be evenly divided by 1 and 21,311,113, with no remainder.

Since 21,311,113 can be divided by just 1 and 21,311,113, it is not a composite number.


More Examples

Number 21,311,11121,311,11221,311,11421,311,115
Composite? noyesyesyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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