Q: Is 55,143 a Prime Number?
A: No, 55,143 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 55143 can be evenly divided by 1 3 9 11 33 99 557 1,671 5,013 6,127 18,381 and 55,143, with no remainder.
Since 55,143 cannot be divided by just 1 and 55,143, it is not a prime number.