Q: Is 321,165 a Composite Number?

 A: Yes, 321,165 is a composite number.

Why is 321,165 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 321,165 can be evenly divided by 1 3 5 9 13 15 27 39 45 61 65 81 117 135 183 195 305 351 405 549 585 793 915 1,053 1,647 1,755 2,379 2,745 3,965 4,941 5,265 7,137 8,235 11,895 21,411 24,705 35,685 64,233 107,055 and 321,165, with no remainder.

Since 321,165 cannot be divided by just 1 and 321,165, it is a composite number.


More Examples

Number 321,163321,164321,166321,167
Composite? noyesyesyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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