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"Eptoogol" redirects here. It is not to be confused with heptoogol.

Gagol is equal to $$\{10,100,7\}$$ in BEAF.[1] The term was coined by Jonathan Bowers.

This number is also called hecta-octaxis (formerly hecta-octaksys) by Sbiis Saibian, and it's equal to E1#1#1#1#1#1#100 in Hyper-E notation.[2]

Username5243 calls this number Eptoogol, and it's equal to $$10[7]100$$ in Username5243's Array Notation.[3]

Approximations

Notation Approximation
Arrow Notation $$10\uparrow\uparrow\uparrow\uparrow\uparrow\uparrow\uparrow100$$
=$$10\uparrow^{7}100$$
Chained arrow notation $$10 \rightarrow 100 \rightarrow 7$$ (exact)
Hyper-E notation $$\textrm{E}1\#1\#1\#1\#1\#1\#100$$
Fast-growing hierarchy $$f_8(100)$$
Hardy hierarchy $$H_{\omega^8}(100)$$
Slow-growing hierarchy $$g_{\varphi(6,0)}(100)$$

Sources

1. Bowers, JonathanInfinity Scrapers. Retrieved January 2013.
2. Saibian, Sbiis. Hyper-E Numbers. Retrieved 2015-04-24.
3. Username5243. Shortened listMy Large Numbers. Retrieved 2017-05-02.

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