[sasmithjr]

The only thing that might be tricky about FizzBuzz is if the person doesn't know about the modulo operator. I can't remember the last time I used it in production code; I use it far more thinking about FizzBuzz than I do anywhere else.

[kijin]

If I didn't have the modulo operator, I would just check whether division resulted in a round number. I wouldn't rate someone who understands this basic principle lower than someone who just happens to know about the modulo operator.

Bonus points if you use Python and demonstrate that you know the difference between the / operator and the // operator. That's much more useful in day-to-day work.

[teo_zero]

It's worth noting that the original FizzBuzz problem is not "given a number n, print..." but rather "for the first 100 natural numbers, print...". In this formulation, you don't need the modulo operator: you just initialize two counters at 3 and 5, respectively, decrement them each time, and react when either or both reach 0.