Q: Is 511,401 a Prime Number?
A: No, 511,401 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 511401 can be evenly divided by 1 3 11 33 15,497 46,491 170,467 and 511,401, with no remainder.
Since 511,401 cannot be divided by just 1 and 511,401, it is not a prime number.