Q: Is 21,438,820 a Composite Number?

 A: Yes, 21,438,820 is a composite number.

Why is 21,438,820 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 21,438,820 can be evenly divided by 1 2 4 5 10 13 20 26 52 65 130 260 82,457 164,914 329,828 412,285 824,570 1,071,941 1,649,140 2,143,882 4,287,764 5,359,705 10,719,410 and 21,438,820, with no remainder.

Since 21,438,820 cannot be divided by just 1 and 21,438,820, it is a composite number.


More Examples

Number 21,438,81821,438,81921,438,82121,438,822
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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