Q: Is 405,165 a Prime Number?
A: No, 405,165 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 405165 can be evenly divided by 1 3 5 15 27,011 81,033 135,055 and 405,165, with no remainder.
Since 405,165 cannot be divided by just 1 and 405,165, it is not a prime number.