Embodiments of methods, apparatus, devices and/or systems for manipulating hierarchical sets of data are discussed. For example, in one embodiment, a method of splitting a first tree into at least second and third trees includes the following. A first tree is converted to a first numeral via a computing platform. The first numeral is factored into at least second and third numerals. The at least second and third numerals are converted to at least second and third trees. Many other embodiments are disclosed.