Q: Is 521,011 a Prime Number?

A: No, 521,011 is not a prime number.

Why is 521,011 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 521011 can be evenly divided by 1 137 3,803 and 521,011, with no remainder.

Since 521,011 cannot be divided by just 1 and 521,011, it is not a prime number.

Number	521,009	521,010	521,012	521,013
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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