Q: Is 240,543 a Prime Number?
A: No, 240,543 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 240543 can be evenly divided by 1 3 9 27 59 151 177 453 531 1,359 1,593 4,077 8,909 26,727 80,181 and 240,543, with no remainder.
Since 240,543 cannot be divided by just 1 and 240,543, it is not a prime number.