Q: Is 397,321 a Prime Number?
A: No, 397,321 is 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 397321 can be evenly divided by 1 83 4,787 and 397,321, with no remainder.
Since 397,321 cannot be divided by just 1 and 397,321, it is not a prime number.