The ciaxul is equal to \(200!=200\cdot 199\cdot...\cdot 3\cdot 2\cdot 1\) in hypermathematics. It is the hypermathematics analogue of faxul. Operations in hypermathematics are defined like the ones in regular mathematics, but the numbers are added differently, namely by concatenating their decimal expansions (such as 31+29=3129). The name was coined by Instrumentalism.