Finite Group DatabasebetaFinite Group Databasebeta| order | 891 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of H(3,𝔽3) |
| automorphism | ? |
| homology | Abelianization (H1) = C3×C9×C11 · Schur multiplier (H2) = C3 |
| direct product | C11×C9⋊C9 |
| unambiguous semidirect product | C9⋊(C9×C11) |
| unambiguous semidirect product | (C9×C11)⋊C9 |
| subgroup | G/H | |
|---|---|---|
| center, socle, prime radical | C32×C11 | C32 |
| commutator | C3 | C3×C9×C11 |
| Frattini, cosocle | C32 | C32×C11 |
| LCS | G ▷ C3 ▷ C1 | |
| UCS | C1 ◁ C32×C11 ◁ G | |
34 conjugacy classes of subgroups.
| minimal degree | μ(G) = 29 |
| transitive degree | μt(G) = 891 |
A minimal faithful permutation representation — 2 generators on 29 points:
(1,2,3,4,5,6,7,8,9,10,11)(13,15,18)(16,20,19)(21,22,24,23,25,27,26,28,29);(12,13,16,14,15,19,17,18,20)363 conjugacy classes. The character table is too large to display.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(891, 4);