Q: Is 558,423 a Prime Number?
A: No, 558,423 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 558423 can be evenly divided by 1 3 9 62,047 186,141 and 558,423, with no remainder.
Since 558,423 cannot be divided by just 1 and 558,423, it is not a prime number.