Q: Is 1,143,397 a Prime Number?
A: No, 1,143,397 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 1143397 can be evenly divided by 1 229 4,993 and 1,143,397, with no remainder.
Since 1,143,397 cannot be divided by just 1 and 1,143,397, it is not a prime number.