Q: Is 540,397 a Prime Number?
A: No, 540,397 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 540397 can be evenly divided by 1 11 13 143 3,779 41,569 49,127 and 540,397, with no remainder.
Since 540,397 cannot be divided by just 1 and 540,397, it is not a prime number.