Q: Is 21,121,131 a Composite Number?

 A: Yes, 21,121,131 is a composite number.

Why is 21,121,131 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 21,121,131 can be evenly divided by 1 3 349 1,047 20,173 60,519 7,040,377 and 21,121,131, with no remainder.

Since 21,121,131 cannot be divided by just 1 and 21,121,131, it is a composite number.


More Examples

Number 21,121,12921,121,13021,121,13221,121,133
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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