Q: Is 856,021 a Prime Number?

A: Yes, 856,021 is a prime number.

Why is 856,021 a prime number?

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

The number 856021 can be evenly divided by 1 and 856,021, with no remainder.

Since 856,021 can be divided by just 1 and 856,021, it is a prime number.

Number	856,019	856,020	856,022	856,023
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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