Q: Is 558 a Prime Number?
A: No, 558 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 558 can be evenly divided by 1 2 3 6 9 18 31 62 93 186 279 and 558, with no remainder.
Since 558 cannot be divided by just 1 and 558, it is not a prime number.