Q: Is 543,001 a Prime Number?

A: No, 543,001 is not a prime number.

Why is 543,001 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 543001 can be evenly divided by 1 19 28,579 and 543,001, with no remainder.

Since 543,001 cannot be divided by just 1 and 543,001, it is not a prime number.

Number	542,999	543,000	543,002	543,003
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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