This is a prime factorization exercise. When you press green flag, that means you have start this exercise. Next, it will ask you which level. Level 1 is 2 to 20. Level 2 is 21 to 40. Level 3 is 41 to 60, and so on. After you have enter the no of level, you need to wait while it is loading. When it make sure it will finish loading in 3 second, it will count down 3 second, like 3, 2, 1. Then, It will ask you what is the prime factorization of xxx is. You may answer it in keyboard. Press orange for ^. Press green (not green flag) is x (times). Press pink for backspace. For example, 12=2^2x3, 2^2x3^1, 3x2^2, etc. is not allow.
