The googoldiflux (or googolgoogolflex) is equal to \(10 \underbrace{\uparrow\uparrow\ldots\uparrow\uparrow}_{10^{100}} (10^{100})\) in up-arrow notation.

It is much larger than G1 , but much smaller than G2.The term was first mentioned in the online book "On the shoulders of giant numbers".[1]


  1. bigΨ section 1.5.2. Googol world
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