Q: Is 123 a Prime Number?

 A: No, 123 is not a prime number.

Why is 123 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 123 can be evenly divided by 1, 3, 41 and 123, with no remainder.

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

More Examples

Number 121122124125
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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