Q: Is 243,791 a Prime Number?
A: No, 243,791 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 243791 can be evenly divided by 1 131 1,861 and 243,791, with no remainder.
Since 243,791 cannot be divided by just 1 and 243,791, it is not a prime number.