Q: Is 820,999 a Prime Number?

A: No, 820,999 is not a prime number.

Why is 820,999 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 820999 can be evenly divided by 1 43 61 313 2,623 13,459 19,093 and 820,999, with no remainder.

Since 820,999 cannot be divided by just 1 and 820,999, it is not a prime number.

Number	820,997	820,998	821,000	821,001
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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