4 ms·

I may be misunderstanding - a bit mask only tells you if something is divisible by 16 or 256 (or any other power of 2) I think he's saying in base 16 you can m

I may be misunderstanding - a bit mask only tells you if something is divisible by 16 or 256 (or any other power of 2) I think he's saying in base 16 you can make a trick to check divisibility by e.g. 15 in the same way you can check divisibility by 9 in base 10. So is 0xE1 (225) divisible by 0xF (15)? 0xE + 0x1 = 0xF, so yes.

qayxc 6y ago
> I think he's saying in base 16 you can make a trick to check divisibility by e.g. 15 in the same way you can check divisibility by 9 in base 10. Yeah - I misunderstood there and thought they meant divisibility by 16 or 256 not in base 16 or 256. Should've had my morning coffee first :D