Q: Is 143,543 a Prime Number?
A: No, 143,543 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 143543 can be evenly divided by 1 23 79 1,817 6,241 and 143,543, with no remainder.
Since 143,543 cannot be divided by just 1 and 143,543, it is not a prime number.