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Not to be confused with googolbang.

A googolbong is equal to $$10^{100{,}000{,}000}$$ or 1 followed by myllion (100 million) zeros, or E100,000,000 or E8#2 in Hyper-E Notation.[1][2] It is the millionth power of a googol and the thousandth power of a googolgong. The name appears to be extrapolated from "googolgong" with the bi- prefix, meaning 2. Written out it would take 100 books of 300 pages each. It is also called ten trestriginmillitrestrigintatrecenmilliduotrigintatrecentillion in the short scale. It is 100,000,001 digits long.

Aarex Tiaokhiao calls this number gootr-hol.[3] Username5243 calls this number gooctolplex, and it's equal to 10[1]10[1]8 in Username5243's Array Notation.[4] Landon Curt Noll calls this number ten tretriginmilliamilliatrecentretriginmilliatrecenduotrigintillion in his page, The English name of a number.

## Approximations in other notations

Notation Lower bound Upper bound
Scientific notation $$1\times10^{100\,000\,000}$$
Arrow notation $$10\uparrow10\uparrow8$$
Steinhaus-Moser Notation $$7[3][3]$$ $$8[3][3]$$
Copy notation $$9[9[8]]$$ $$1[1[9]]$$
Chained arrow notation $$10\to(10\to8)$$
Taro's multivariable Ackermann function $$A(3,A(3,25))$$ $$A(3,A(3,26))$$
H* function $$H(33,333,332)$$ $$H(33,333,333)$$
Pound-Star Notation $$\#\text{*}((1))\text{*}3661$$ $$\#\text{*}((1))\text{*}3662$$
BEAF & Bird's array notation $$\{10,\{10,8\}\}$$
Bashicu matrix system $$(0)(1)[5]$$ $$(0)(1)[6]$$
Hyperfactorial array notation $$(10!)!$$ $$(11!)!$$
Fast-growing hierarchy $$f_2(f_2(23))$$ $$f_2(f_2(24))$$
Hardy hierarchy $$H_{\omega^22}(23)$$ $$H_{\omega^22}(24)$$
Slow-growing hierarchy $$g_{\omega^{\omega^8}}(10)$$

## Sources

-minutia group
n-ary numbers with multipliers
Eyelash mite group: eyelash mite-speck · eyelash mite-crumb · eyelash mite-chunk · (binary/ternary/octal)eyelash mite · eyelash mite-bunch · eyelash mite-crowd · eyelash mite-swarm
Dust mite group: dust mite-speck · dust mite-crumb · dust mite-chunk · (binary/ternary/octal)dust mite · dust mite-bunch · dust mite-crowd · dust mite-swarm
Cheese mite group: cheese mite-speck · cheese mite-crumb · cheese mite-chunk · (binary/ternary/octal)cheese mite · cheese mite-bunch · cheese mite-crowd · cheese mite-swarm
Clover mite group: clover mite-speck · clover mite-crumb · clover mite-chunk · (binary/ternary/octal)clover mite · clover mite-bunch · clover mite-crowd · clover mite-swarm
Pipsqueak group: (binary/ternary/octal)pipsqueak
Little squeaker group: (binary/ternary/octal)little squeaker
Small fry group: (binary/ternary/octal)small fry
Guppy group: (binary/ternary/octal)guppyspeck · (binary/ternary/octal)guppycrumb · (binary/ternary/octal)guppychunk · (ternary/quaternary/quinary/duodecimal/hexadecimal/vigesimal/sexagesimal)guppy(bit/byte)
Minnow group: (binary/ternary/octal)minnowspeck · (binary/ternary/octal)minnowcrumb · (binary/ternary/octal)minnowchunk · (ternary)minnow(bit/byte)
Goby group: (binary/ternary/octal)gobyspeck · (binary/ternary/octal)gobycrumb · (binary/ternary/octal)gobychunk · (ternary)goby(bit/byte)
Jumbo shrimp group: (binary/ternary/octal)jumbo shrimp
Lightweight group: (binary/ternary/octal)lightweight
Ogol group: (binary/ternary/octal)ogolspeck · (binary/ternary/octal)ogolcrumb · (binary/ternary/octal)ogolchunk · (ternary/quaternary/quinary/duodecimal/hexadecimal/vigesimal/sexagesimal)ogol(bit/byte)
Tiny twerpuloid group: (binary/ternary/octal)tiny twerpuloid
Googol group: (binary/ternary/octal)googolspeck · (binary/ternary/octal)googolcrumb · (binary/ternary/octal)googolchunk · (ternary/quaternary/quinary/duodecimal/hexadecimal/vigesimal/sexagesimal)googol*(bit/byte) · googolbunch · googolcrowd · googolswarm
Eceton group: ecetonspeck · ecetoncrumb · ecetonchunk · ecetonbunch · ecetoncrowd · ecetonswarm
*Not Saibian's
Numbers with base-multipliers
Numbers with -plex

Googol — Greagol
Greagol — Gugold
Throogol — Godgahlah-ex-grand godgahlah