Q: Is 128,223 a Prime Number?
A: No, 128,223 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 128223 can be evenly divided by 1 3 9 27 81 1,583 4,749 14,247 42,741 and 128,223, with no remainder.
Since 128,223 cannot be divided by just 1 and 128,223, it is not a prime number.