When their 47 sectors are changed into tetractyses, the seven separate polygons have 144 yods on their boundaries. Both sets of polygons have 288 boundary yods. This is also the number of yods in seven polygons that surround their centres. It is characteristic of holistic systems or objects with sacred geometry that their properties are expressed by the numbers 1, 2, 3 & 4 symbolized by the four rows of dots in the tetractys. The numbers 144 and 288 are such examples. Another example is the fact that 576 yods surround the centres of the two sets of polygons when their 96 sectors are tetractyses, where 576 = 24² = 1²×2²×3²×4².