Q: Is 123,515 a Prime Number?

A: No, 123,515 is not a prime number.

Why is 123,515 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 123515 can be evenly divided by 1 5 7 35 3,529 17,645 24,703 and 123,515, with no remainder.

Since 123,515 cannot be divided by just 1 and 123,515, it is not a prime number.

Number	123,513	123,514	123,516	123,517
Prime?	no	no	no	yes

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

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