Q: Is 210,105 a Composite Number?

 A: Yes, 210,105 is a composite number.

Why is 210,105 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 210,105 can be evenly divided by 1 3 5 7 9 15 21 23 29 35 45 63 69 87 105 115 145 161 203 207 261 315 345 435 483 609 667 805 1,015 1,035 1,305 1,449 1,827 2,001 2,415 3,045 3,335 4,669 6,003 7,245 9,135 10,005 14,007 23,345 30,015 42,021 70,035 and 210,105, with no remainder.

Since 210,105 cannot be divided by just 1 and 210,105, it is a composite number.


More Examples

Number 210,103210,104210,106210,107
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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