Q: Is 171,243 a Prime Number?
A: No, 171,243 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 171243 can be evenly divided by 1 3 9 53 159 359 477 1,077 3,231 19,027 57,081 and 171,243, with no remainder.
Since 171,243 cannot be divided by just 1 and 171,243, it is not a prime number.