Select polyominoes for a set (currently 1 or 2), for which tilings should be shown.
Then click "Show" button.
You may also see list of all polyomino sets for which data is available here.
Prime rectangles: ≥ 5.
Smallest rectangle (4x5):
Smallest square (8x8):
Blue number (P) - strongly prime rectangle (which cannot be divided into two or more number of rectangles tileable by this set).
Green number (W) - weakly prime rectangle (which cannot be divided into two rectangles tileable by this set, but which can be divided into three or more rectangles).
Red number (C) - composite rectangle (which can be divided into two rectangles tileable by this set).
Gray number - it is unknown whether rectangle is prime or composite.
Question mark (?) - solution count is unknown.
Click on underlined numbers to view picture with one solution.
|w \ h||1-3||4||5||6||7||8||N>0|
Smallest common multiple (area 24):
Smallest known common multiple without holes (area 36):
Smallest known convex common multiple (area 48):