Q: Is 216,189 a Prime Number?
A: No, 216,189 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 216189 can be evenly divided by 1 3 9 17 27 51 81 153 157 459 471 1,377 1,413 2,669 4,239 8,007 12,717 24,021 72,063 and 216,189, with no remainder.
Since 216,189 cannot be divided by just 1 and 216,189, it is not a prime number.