## FANDOM

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Not to be confused with trecentillion.

The centretillion or trescentillion is equal to $$10^{312}$$ in short scale.[1] It is equal to $$10^{618}$$ in long scale. It is 313 digits long in short scale, or 619 digits long in long scale.

### ApproximationsEdit

For short scale:

Notation Lower bound Upper bound
Scientific notation $$1\times10^{312}$$
Arrow notation $$10\uparrow312$$
Steinhaus-Moser Notation 144[3] 145[3]
Copy notation 9[312] 1[313]
Chained arrow notation $$10→312$$
Taro's multivariable Ackermann function A(3,1033) A(3,1034)
Pound-Star Notation #*((844))*11 #*((845))*11
BEAF {10,312}
Hyper-E notation E312
Bashicu matrix system (0)(0)(0)(0)(0)(0)[74989] (0)(0)(0)(0)(0)(0)[74990]
Bird's array notation {10,312}
Hyperfactorial array notation 172! 173!
Strong array notation s(10,312)
Fast-growing hierarchy $$f_2(1026)$$ $$f_2(1027)$$
Hardy hierarchy $$H_{\omega^2}(1026)$$ $$H_{\omega^2}(1027)$$
Slow-growing hierarchy $$g_{\omega^{\omega^23+\omega+2}}(10)$$

For long scale:

Notation Lower bound Upper bound
Scientific notation $$1\times10^{618}$$
Arrow notation $$10\uparrow618$$
Steinhaus-Moser Notation 256[3] 257[3]
Copy notation 9[618] 1[619]
Taro's multivariable Ackermann function A(3,2049) A(3,2050)
Pound-Star Notation #*((485))*15 #*((486))*15
BEAF {10,618}
Hyper-E notation E618
Bashicu matrix system (0)(1)[8] (0)(1)[9]
Hyperfactorial array notation 301! 302!
Fast-growing hierarchy $$f_2(2041)$$ $$f_2(2042)$$
Hardy hierarchy $$H_{\omega^2}(2041)$$ $$H_{\omega^2}(2042)$$
Slow-growing hierarchy $$g_{\omega^{\omega^26+\omega+8}}(10)$$

### Sources Edit

1. Illion Numbers