Q: Is 123,221 a Prime Number?

A: No, 123,221 is not a prime number.

Why is 123,221 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 123221 can be evenly divided by 1 7 29 203 607 4,249 17,603 and 123,221, with no remainder.

Since 123,221 cannot be divided by just 1 and 123,221, it is not a prime number.

Number	123,219	123,220	123,222	123,223
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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