Q: Is 243,387 a Prime Number?
A: No, 243,387 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 243387 can be evenly divided by 1 3 9 27,043 81,129 and 243,387, with no remainder.
Since 243,387 cannot be divided by just 1 and 243,387, it is not a prime number.