Q: Is 135,243 a Prime Number?
A: No, 135,243 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 135243 can be evenly divided by 1 3 9 27 5,009 15,027 45,081 and 135,243, with no remainder.
Since 135,243 cannot be divided by just 1 and 135,243, it is not a prime number.