Q: Is 166,209 a Prime Number?
A: No, 166,209 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 166209 can be evenly divided by 1 3 17 51 3,259 9,777 55,403 and 166,209, with no remainder.
Since 166,209 cannot be divided by just 1 and 166,209, it is not a prime number.