Q: Is 105,105 a Composite Number?

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

Why is 105,105 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 105,105 can be evenly divided by 1 3 5 7 11 13 15 21 33 35 39 49 55 65 77 91 105 143 147 165 195 231 245 273 385 429 455 539 637 715 735 1,001 1,155 1,365 1,617 1,911 2,145 2,695 3,003 3,185 5,005 7,007 8,085 9,555 15,015 21,021 35,035 and 105,105, with no remainder.

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


More Examples

Number 105,103105,104105,106105,107
Composite? yesyesyesno
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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