Q: Is 621,004 a Prime Number?

A: No, 621,004 is not a prime number.

Why is 621,004 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 621004 can be evenly divided by 1 2 4 155,251 310,502 and 621,004, with no remainder.

Since 621,004 cannot be divided by just 1 and 621,004, it is not a prime number.

Number	621,002	621,003	621,005	621,006
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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