Q: Is 243,171 a Prime Number?
A: No, 243,171 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 243171 can be evenly divided by 1 3 9 41 123 369 659 1,977 5,931 27,019 81,057 and 243,171, with no remainder.
Since 243,171 cannot be divided by just 1 and 243,171, it is not a prime number.