Q: Is 243,143 a Prime Number?
A: No, 243,143 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 243143 can be evenly divided by 1 19 67 191 1,273 3,629 12,797 and 243,143, with no remainder.
Since 243,143 cannot be divided by just 1 and 243,143, it is not a prime number.