Q: Is 321,210 a Composite Number?

 A: Yes, 321,210 is a composite number.

Why is 321,210 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 321,210 can be evenly divided by 1 2 3 5 6 9 10 15 18 30 43 45 83 86 90 129 166 215 249 258 387 415 430 498 645 747 774 830 1,245 1,290 1,494 1,935 2,490 3,569 3,735 3,870 7,138 7,470 10,707 17,845 21,414 32,121 35,690 53,535 64,242 107,070 160,605 and 321,210, with no remainder.

Since 321,210 cannot be divided by just 1 and 321,210, it is a composite number.


More Examples

Number 321,208321,209321,211321,212
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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