Q: Is 542,223 a Prime Number?
A: No, 542,223 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 542223 can be evenly divided by 1 3 9 11 33 99 5,477 16,431 49,293 60,247 180,741 and 542,223, with no remainder.
Since 542,223 cannot be divided by just 1 and 542,223, it is not a prime number.