Q: Is 4,001,397 a Prime Number?
A: No, 4,001,397 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 4001397 can be evenly divided by 1 3 1,333,799 and 4,001,397, with no remainder.
Since 4,001,397 cannot be divided by just 1 and 4,001,397, it is not a prime number.