Press the button that says '_____ Number Check' and type the number you want to test. 1 might work, but 0 will never work. If you don't understand, try using an array. See? 0 x 0 or 0 x 0 x 0 is ERROR because you can't multiply something that isn't there. Letters do not work either. If you're bored, comment the largest number you found was ____.
I was doing maths problems, and I thought of this. If you hate maths - watch these. https://imgur.com/gallery/jfKdNqO
