Hello ! That's a display wich shows you the percent of prime numbers among the number in the top left hand corner. The big circle represents this number and the little one symbolizes the percent of prime numbers. I advise you to use the Turbo mode (Shift + Green Flag) Tell me in comment wich number you reached !
I'm sorry for my inactivity during the last few months, I'm getting disintersted of Scratch : I try Python and love VBA (Excel) That's just an idea I had and I thout it would be cool sharing it on Scratch :)
