Q: Is 321,445 a Prime Number?

A: No, 321,445 is not a prime number.

Why is 321,445 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 321445 can be evenly divided by 1 5 53 265 1,213 6,065 64,289 and 321,445, with no remainder.

Since 321,445 cannot be divided by just 1 and 321,445, it is not a prime number.

Number	321,443	321,444	321,446	321,447
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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