Q: Is 123,145 a Prime Number?

A: No, 123,145 is not a prime number.

Why is 123,145 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 123145 can be evenly divided by 1 5 11 55 2,239 11,195 24,629 and 123,145, with no remainder.

Since 123,145 cannot be divided by just 1 and 123,145, it is not a prime number.

Number	123,143	123,144	123,146	123,147
Prime?	yes	no	no	no

All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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