Q: Is 870,873 a Prime Number?

A: No, 870,873 is not a prime number.

Why is 870,873 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 870873 can be evenly divided by 1 3 107 321 2,713 8,139 290,291 and 870,873, with no remainder.

Since 870,873 cannot be divided by just 1 and 870,873, it is not a prime number.

Number	870,871	870,872	870,874	870,875
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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