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Giggolduplex is equal to {10,giggolplex,2} in BEAF, or 10 tetrated to giggolplex.[1] The term was coined by Jonathan Bowers. It is equal to 1010...1010, where there are giggolplex tens.

Giggolplex is also called hectalogialogialogue by Sbiis Saibian, and equal to E1#giggolplex = E1#(E1#100#2) = E1#100#3 in Hyper-E notation.[2]

Username5243 calls this number doogolduplex, and it's equal to 10[2]10[2]10[2]100 in Username5243's Array Notation.[3]

## Etymology

The name of the number is based on suffix "-duplex" and the number giggol.

## Approximations in other notations

Notation Approximation
Up-arrow notation $$10 \uparrow\uparrow (10 \uparrow\uparrow (10 \uparrow\uparrow 100))$$ (exact)
Hyper-E notation $$\textrm{E}1\#100\#3$$ (exact)
Chained arrow notation $$10 \rightarrow (10 \rightarrow (10 \rightarrow 100 \rightarrow 2) \rightarrow 2) \rightarrow 2$$ (exact)
Hyperfactorial array notation $$((102!1)!1)!1$$
Fast-growing hierarchy $$f_3(f_3(f_3(100)))$$
Hardy hierarchy $$H_{(\omega^3) 3}(100)$$
Slow-growing hierarchy $$g_{\varepsilon_{\varepsilon_{\varepsilon_0}}}(100)$$

## Pronunciation

It is likely pronounced as so:

## Sources

1. Bowers, JonathanInfinity Scrapers. Retrieved January 2013.
2. Saibian, Sbiis. 4.3.2 - Hyper-E Notation - Large Numbers. Retrieved 2016-08-04.
3. Part 1 - My Large Numbers

Jonathan Bowers' googol series

Googol series: googol(plex/duplex/triplex/quadraplex/quinplex) · giggol(plex/duplex) · gaggol(plex/duplex) · geegol(plex) · gigol(plex) · goggol(plex) · gagol(plex)
Boogol series: boogol(plex/duplex/triplex) · biggol(plex/duplex) · baggol(plex) · beegol(plex) · bigol · boggol · bagol
Troogol series: troogol(plex/duplex) · triggol(plex/duplex) · traggol(plex/duplex) · treegol · trigol · troggol · tragol
Quintoogol series: quintoogol(plex) · quintiggol · quintaggol · quinteegol · quintigol · quintoggol · quintagol · (sextoogol · septoogol · octoogol)
Goobol series: goobol(plex) · gibbol · gabbol · geebol · gibol · gobbol · gabol
Boobol series: boobol · bibbol · babbol · beebol · bibol · bobbol · babol
Troobol series: troobol · tribbol · trabbol