Finite Group DatabasebetaFinite Group Databasebeta| order | 228 |
| isoclinism | isoclinic class of D57 |
| automorphism | Aut(G) = C2×D3×AGL(1,𝔽19) (order 4104) · Inn(G) = D57 · Out(G) = C22×C9 |
| homology | Abelianization (H1) = C22 · Schur multiplier (H2) = C2 |
| dihedral | D114 |
| direct product | C2×D57 |
| unambiguous semidirect product | (C2×C3)⋊D19 |
| unambiguous semidirect product | (C2×C19)⋊D3 |
| Fitting, socle | C2×C3×C19 ⋊ C2 |
| derived, Hall | C3×C19 ⋊ C22 |
| Sylow | C19 ⋊ C2×D3 |
| Sylow | C3 ⋊ C2×D19 |
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C2 | D57 |
| commutator, cosocle, hypocenter | C3×C19 | C22 |
| Frattini | C1 | G |
| Fitting, socle | C2×C3×C19 | C2 |
| LCS | G ▷ C3×C19 | |
| UCS | C1 ◁ C2 | |
20 conjugacy classes of subgroups.
| minimal degree | μ(G) = 24 |
| transitive degree | μt(G) = 114 |
A minimal faithful permutation representation — 2 generators on 24 points:
(1,2)(3,4,5)(6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24);(4,5)(7,24)(8,23)(9,22)(10,21)(11,20)(12,19)(13,18)(14,17)(15,16)60 conjugacy classes — view the full character table.
| maximal subgroup of | D57⋊C4, #90696, #90697, … |
| maximal normal subgroup of | D57⋊C4, #90696, #90697, … |
| maximal quotient of | Dic114, C4×D57, D228, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(228, 14);