Q: Is 18,872 a Prime Number?

A: No, 18,872 is not a prime number.

Why is 18,872 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 18872 can be evenly divided by 1 2 4 7 8 14 28 56 337 674 1,348 2,359 2,696 4,718 9,436 and 18,872, with no remainder.

Since 18,872 cannot be divided by just 1 and 18,872, it is not a prime number.

Number	18,870	18,871	18,873	18,874
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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