The terafaxul (also called faxulquadrienek[1]) is equal to gigafaxul!, (((faxul!)!)!)! or ((((200!)!)!)!)![2], or 200!5 using Nested Factorial Notation.The term was coined by Lawrence Hollom.
Etymology
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The name of this number is based on SI prefix "tera-" and the number "faxul".
- ↑ Factorial Array Notation - Extremely big numbers
- ↑ Lawrence Hollom's large numbers site