Wilkillion is equal to 763,991.[1] The term was coined by Garrett Wilkinson.
Approximations in other notations[]
| Notation | Lower bound | Upper bound |
|---|---|---|
| Scientific notation | \(7.63991\times10^5\) | |
| Arrow notation | \(91\uparrow3\) | \(92\uparrow3\) |
| Steinhaus-Moser Notation | 6[3] | 7[3] |
| Copy notation | 6[6] | 7[6] |
| Chained arrow notation | \(91\rightarrow3\) | \(92\rightarrow3\) |
| Taro's multivariable Ackermann function | A(3,16) | A(3,17) |
| Pound-Star Notation | #*(63)*3 | #*(64)*3 |
| PlantStar's Debut Notation | [3] | [4] |
| BEAF | {91,3} | {92,3} |
| Bashicu matrix system | (0)[875] | (0)[876] |
| Bird's array notation | {91,3} | {92,3} |
| Hyperfactorial array notation | 9! | 10! |
| Strong array notation | s(91,3) | s(92,3) |
| Fast-growing hierarchy | \(f_2(15)\) | \(f_2(16)\) |
| Hardy hierarchy | \(H_{\omega^2}(15)\) | \(H_{\omega^2}(16)\) |
| Slow-growing hierarchy | \(g_{\omega^3}(91)\) | \(g_{\omega^3}(92)\) |