4 × 4

complete

smallest rectangle: 4 × 4

Walkup [1] proves that this is the only prime rectangle.

**Reference**

[1] D.W. Walkup, Covering a
Rectangle with T-tetrominoes,
*American Mathematical Monthly* **72** (1965) pp. 986-988.

Data for prime rectangles | Rectifiable polyominoes | Polyomino page | Home page | E-mail

Updated August 23, 2011.