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The petafaxul (also called faxulquinquenek[1]) is equal to terafaxul!, ((((faxul!)!)!)!)! or (((((200!)!)!)!)!)![2], or 200!6 using Nested Factorial Notation. The term was coined by Lawrence Hollom.

Etymology Edit

The name of this number is based on SI prefix "peta-" and the number "faxul".

Sources Edit

  1. Factorial Array Notation - Extremely big numbers
  2. Lawrence Hollom's large numbers site
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