Q: Is 21,720,216 a Composite Number?

 A: Yes, 21,720,216 is a composite number.

Why is 21,720,216 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 21,720,216 can be evenly divided by 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 129,287 258,574 387,861 517,148 775,722 905,009 1,034,296 1,551,444 1,810,018 2,715,027 3,102,888 3,620,036 5,430,054 7,240,072 10,860,108 and 21,720,216, with no remainder.

Since 21,720,216 cannot be divided by just 1 and 21,720,216, it is a composite number.


More Examples

Number 21,720,21421,720,21521,720,21721,720,218
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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