Q: Is 821,121 a Composite Number?

 A: Yes, 821,121 is a composite number.

Why is 821,121 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 821,121 can be evenly divided by 1 3 7 21 61 183 427 641 1,281 1,923 4,487 13,461 39,101 117,303 273,707 and 821,121, with no remainder.

Since 821,121 cannot be divided by just 1 and 821,121, it is a composite number.


More Examples

Number 821,119821,120821,122821,123
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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