Q: Is 721,540 a Composite Number?

 A: Yes, 721,540 is a composite number.

Why is 721,540 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 721,540 can be evenly divided by 1 2 4 5 10 20 43 86 172 215 430 839 860 1,678 3,356 4,195 8,390 16,780 36,077 72,154 144,308 180,385 360,770 and 721,540, with no remainder.

Since 721,540 cannot be divided by just 1 and 721,540, it is a composite number.


More Examples

Number 721,538721,539721,541721,542
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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