Petagross is equal to 14415 = 237,376,313,799,769,806,328,950,291,431,424. The term was coined by User:Instrumentalism.[1]


Notation Lower bound Upper bound
Scientific notation \(2.37376313\times10^{32}\) \(2.37376314\times10^{32}\)
Arrow notation \(12\uparrow30\)
Chained arrow notation \(12\rightarrow30\)
Steinhaus-Moser Notation 23[3] 24[3]
Copy notation 2[33] 3[33]
BEAF {12,30}
Strong array notation s(12,30)
Hyperfactorial array notation 29! 30!
Fast-growing hierarchy \(f_2(100)\) \(f_2(101)\)
Hardy hierarchy \(H_{\omega^2}(100)\) \(H_{\omega^2}(101)\)
Slow-growing hierarchy \(g_{\omega^{30}}(12)\)


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