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The fugagoogolplex is equal to $$\text{googolplex} \downarrow\downarrow \text{googolplex}$$ = googolplexgoogolplex(googolplex-1), or a googolplex raised to the googolplexth power googolplex-1 times.[1] It is comparable to googoltriplex, but only on a googological scale - while a googoltriplex is 1 followed by a googolduplex zeros, one would have to raise a a googolduplex to the power of approximately a googol to get the number of digits in a fugagoogolplex.