Q: Is 21,170,709 a Composite Number?

 A: Yes, 21,170,709 is a composite number.

Why is 21,170,709 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 21,170,709 can be evenly divided by 1 3 7 9 21 63 71 213 497 639 1,491 4,473 4,733 14,199 33,131 42,597 99,393 298,179 336,043 1,008,129 2,352,301 3,024,387 7,056,903 and 21,170,709, with no remainder.

Since 21,170,709 cannot be divided by just 1 and 21,170,709, it is a composite number.


More Examples

Number 21,170,70721,170,70821,170,71021,170,711
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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