Q: Is 123,165 a Prime Number?

 A: No, 123,165 is not a prime number.

Why is 123,165 not a prime number?

A prime number is a natural number, greater than one, that can only be divided by 1 and itself.

The number 123165 can be evenly divided by 1 3 5 7 9 15 17 21 23 35 45 51 63 69 85 105 115 119 153 161 207 255 315 345 357 391 483 595 765 805 1,035 1,071 1,173 1,449 1,785 1,955 2,415 2,737 3,519 5,355 5,865 7,245 8,211 13,685 17,595 24,633 41,055 and 123,165, with no remainder.

Since 123,165 cannot be divided by just 1 and 123,165, it is not a prime number.


More Examples

Number 123,163123,164123,166123,167
Prime? nononono
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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