Q: Is 21,385 a Composite Number?

 A: Yes, 21,385 is a composite number.

Why is 21,385 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 21,385 can be evenly divided by 1 5 7 13 35 47 65 91 235 329 455 611 1,645 3,055 4,277 and 21,385, with no remainder.

Since 21,385 cannot be divided by just 1 and 21,385, it is a composite number.


More Examples

Number 21,38321,38421,38621,387
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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