Q: Is 645,008 a Composite Number?

 A: Yes, 645,008 is a composite number.

Why is 645,008 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 645,008 can be evenly divided by 1 2 4 7 8 13 14 16 26 28 52 56 91 104 112 182 208 364 443 728 886 1,456 1,772 3,101 3,544 5,759 6,202 7,088 11,518 12,404 23,036 24,808 40,313 46,072 49,616 80,626 92,144 161,252 322,504 and 645,008, with no remainder.

Since 645,008 cannot be divided by just 1 and 645,008, it is a composite number.


More Examples

Number 645,006645,007645,009645,010
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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