About

You can move tiles of a prime number(blue tiles) up and down, left and right by mouse dragging. If tiles you moved overlapped other tiles, the number is added. After you moved a tile, tiles which are not prime numbers (red tiles) divide into as the same number of tiles as the smallest non-1 divisor. ex.) "12" tile → 2 tiles of "6" tile "15" tile → 3 tiles of "5" tile When tiles overflow, the game is over The tile which you added a number to just now doesn't divide. If no tiles divided after you moved a tile, "2" or "3" tiles may appear. Make as large numbers as possible.