Q: Is 16,558 a Prime Number?
A: No, 16,558 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 16558 can be evenly divided by 1 2 17 34 487 974 8,279 and 16,558, with no remainder.
Since 16,558 cannot be divided by just 1 and 16,558, it is not a prime number.