Q: Is 398,667 a Prime Number?
A: No, 398,667 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 398667 can be evenly divided by 1 3 17 51 7,817 23,451 132,889 and 398,667, with no remainder.
Since 398,667 cannot be divided by just 1 and 398,667, it is not a prime number.