What is grahams number

Graham's number is a very big natural number that was defined by a man named Ronald Graham. Graham's number is one of the biggest numbers ever used in a mathematical proof. Even if every digit in Graham's number were written in the tiniest writing possible, it would still be too big to fit in the observable universe.

Step-by-step explanation:

A power Tower of 3s That Stretches From Earth To The Sun

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