Q: Is 188,721 a Prime Number?

A: No, 188,721 is not a prime number.

Why is 188,721 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 188721 can be evenly divided by 1 3 9 13 39 117 1,613 4,839 14,517 20,969 62,907 and 188,721, with no remainder.

Since 188,721 cannot be divided by just 1 and 188,721, it is not a prime number.

Number	188,719	188,720	188,722	188,723
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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