11,327
pages
Not to be confused with googolplex.

The gogolplex (also called googol-sexdecigong) is equal to 101050 = E50#2 = EE50 using Hyper-E notation.[1] The name was coined by Sbiis Saibian. It is equal to 1 followed by an lcillion (100 quindecillion) zeros. It is 1050+1 digits long. Writing down the full decimal expansion would take 1044 books of 400 pages each, with 2,500 digits on each page. It is slightly larger than a quindecillionplex (101048) , and it's lciilion'th power is googolplex .

Aarex Tiaokhiao calls this number hoofolplex.[2]

Username5243 calls this number goohfolplex, and it's equal to 10[1]10[1]50 in Username5243's Array Notation.[3]

Unknown95387 calls this number lcillionplex, named by combining the -plex suffix with lcillion, one of the names for 1050.[4]

## Names in -illion systems

In the short scale, it is also called:

ten trestriginmillitrestrigintatrecenmillitrestrigintatrecenmillitrestrigintatrecenmillitrestrigintatrecenmillitrestrigintatrecenmillitrestrigintatrecenmillitrestrigintatrecenmillitrestrigintatrecenmillitrestrigintatrecenmillitrestrigintatrecenmillitrestrigintatrecenmillitrestrigintatrecenmillitrestrigintatrecenmillitrestrigintatrecenmillitrestrigintatrecenmilliduotrigintatrecentillion

According to Landon Curt Noll's The English name of a number, gogolplex is also known as:

ten tretriginmilliamilliamilliamilliamilliamilliamilliamilliamilliamilliamilliamilliamilliamilliamilliamilliatrecentretriginmilliamilliamilliamilliamilliamilliamilliamilliamilliamilliamilliamilliamilliamilliamilliatrecentretriginmilliamilliamilliamilliamilliamilliamilliamilliamilliamilliamilliamilliamilliamilliatrecentretriginmilliamilliamilliamilliamilliamilliamilliamilliamilliamilliamilliamilliamilliatrecentretriginmilliamilliamilliamilliamilliamilliamilliamilliamilliamilliamilliamilliatrecentretriginmilliamilliamilliamilliamilliamilliamilliamilliamilliamilliamilliatrecentretriginmilliamilliamilliamilliamilliamilliamilliamilliamilliamilliatrecentretriginmilliamilliamilliamilliamilliamilliamilliamilliamilliatrecentretriginmilliamilliamilliamilliamilliamilliamilliamilliatrecentretriginmilliamilliamilliamilliamilliamilliamilliatrecentretriginmilliamilliamilliamilliamilliamilliatrecentretriginmilliamilliamilliamilliamilliatrecentretriginmilliamilliamilliamilliatrecentretriginmilliamilliamilliatrecentretriginmilliamilliatrecentretriginmilliatrecenduotrigintillion

## Approximations in other notations

Notation Lower bound Upper bound
Arrow notation $$10\uparrow10\uparrow50$$
Down-arrow notation $$10\downarrow\downarrow51$$
Steinhaus-Moser Notation 32[3][3] 33[3][3]
Copy notation 9[9[50]] 1[1[51]]
H* function H(33H(15)) H(34H(15))
Taro's multivariable Ackermann function A(3,A(3,164)) A(3,A(3,165))
Pound-Star Notation #*((1))*(5,3)*13 #*((1))*(16)*19
BEAF {10,{10,50}}
Bashicu matrix system (0)(1)[12] (0)(1)[13]
Hyperfactorial array notation (40!)! (41!)!
Fast-growing hierarchy $$f_2(f_2(160))$$ $$f_2(f_2(161))$$
Hardy hierarchy $$H_{\omega^{2}\times2}(160)$$ $$H_{\omega^{2}\times2}(161)$$
Slow-growing hierarchy $$g_{\omega^{\omega^{\omega5}}}(10)$$

## 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)