Q: Is 123,915 a Prime Number?

A: No, 123,915 is not a prime number.

Why is 123,915 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 123915 can be evenly divided by 1 3 5 11 15 33 55 165 751 2,253 3,755 8,261 11,265 24,783 41,305 and 123,915, with no remainder.

Since 123,915 cannot be divided by just 1 and 123,915, it is not a prime number.

Number	123,913	123,914	123,916	123,917
Prime?	no	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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