Not to be confused with tethrarxihect. Tethrarxihept is equal to E100#^^^#7 in Extended Cascading-E Notation. The term was coined by Sbiis Saibian. This number belongs to the tethratope regiment. Sources ↑ Saibian, Sbiis. 4.3.9 - Extended Cascading-E Numbers Part III. Retrieved 2017-01-10. Retrieved from "https://googology.wikia.org/wiki/Tethrarxihept?oldid=331544" Categories Numbers Numbers by Sbiis Saibian Extended Cascading-E numbers Binary phi level Tethratope series Community content is available under CC-BY-SA unless otherwise noted.