Q: Is 3,931 a Prime Number?

A: Yes, 3,931 is a prime number.

Why is 3,931 a prime number?

A prime number is a natural number, greater than one, that can only be divided by 1 and itself.

The number 3931 can be evenly divided by 1 and 3,931, with no remainder.

Since 3,931 can be divided by just 1 and 3,931, it is a prime number.

Number	3,929	3,930	3,932	3,933
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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