Q: Is 855,009 a Prime Number?
A: No, 855,009 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 855009 can be evenly divided by 1 3 9 27 31,667 95,001 285,003 and 855,009, with no remainder.
Since 855,009 cannot be divided by just 1 and 855,009, it is not a prime number.