Q: Is 321,055 a Prime Number?

A: No, 321,055 is not a prime number.

Why is 321,055 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 321055 can be evenly divided by 1 5 7 35 9,173 45,865 64,211 and 321,055, with no remainder.

Since 321,055 cannot be divided by just 1 and 321,055, it is not a prime number.

Number	321,053	321,054	321,056	321,057
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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