Q: Is 243,291 a Prime Number?
A: No, 243,291 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 243291 can be evenly divided by 1 3 81,097 and 243,291, with no remainder.
Since 243,291 cannot be divided by just 1 and 243,291, it is not a prime number.