Q: Is 667,397 a Prime Number?
A: No, 667,397 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 667397 can be evenly divided by 1 761 877 and 667,397, with no remainder.
Since 667,397 cannot be divided by just 1 and 667,397, it is not a prime number.