Q: Is 189,243 a Prime Number?
A: No, 189,243 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 189243 can be evenly divided by 1 3 9 27 43 129 163 387 489 1,161 1,467 4,401 7,009 21,027 63,081 and 189,243, with no remainder.
Since 189,243 cannot be divided by just 1 and 189,243, it is not a prime number.