Q: Is 820,003 a Prime Number?

A: No, 820,003 is not a prime number.

Why is 820,003 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 820003 can be evenly divided by 1 383 2,141 and 820,003, with no remainder.

Since 820,003 cannot be divided by just 1 and 820,003, it is not a prime number.

Number	820,001	820,002	820,004	820,005
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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