1 x 81, 3 x 27, 9 x 9, 27 x 3, 81 x 1
1, 3, 9, 27, 81. 1 x 81 = 81, 3 x 27 = 81, 9 x 9 = 81.
1 x 81, 3 x 27, 9 x 9 = 81
81 = 1 x 81, 3 x 27, 9 x 9, 27 x 3, 81 x 1.
81 = 1 x 81, 3 x 27, 9 x 9, 27 x 3, 81 x 1
1, 3, 9, 27, 81: 1 x 81, 3 x 27, 9 x 9.
27
9 x 9 = 81
81 9*9=8181
1 x 81, 3 x 27, 9 x 9, 27 x 3, 81 x 1 = 81
81 is a perfect square. 9 x 9 = 81
9x9=81