Finite Group DatabasebetaFinite Group Databasebeta| order | 204 |
| isoclinism | isoclinic class of D17 |
| automorphism | Aut(G) = C22×AGL(1,𝔽17) (order 1088) · Inn(G) = D17 · Out(G) = C22×C8 |
| homology | Abelianization (H1) = C22×C3 · Schur multiplier (H2) = C2 |
| direct product | C2×C3×D17 |
| unambiguous semidirect product | C17⋊(C22×C3) |
| unambiguous semidirect product | (C2×C17)⋊(C2×C3) |
| Fitting, socle | C2×C3×C17 ⋊ C2 |
| derived, Sylow | C17 ⋊ C22×C3 |
| Hall | C3×C17 ⋊ C22 |
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C2×C3 | D17 |
| commutator, cosocle, hypocenter | C17 | C22×C3 |
| Frattini | C1 | G |
| Fitting, socle | C2×C3×C17 | C2 |
| LCS | G ▷ C17 | |
| UCS | C1 ◁ C2×C3 | |
20 conjugacy classes of subgroups.
| minimal degree | μ(G) = 22 |
| transitive degree | μt(G) = 102 |
A minimal faithful permutation representation — 2 generators on 22 points:
(1,2)(3,4,5)(7,8)(9,10)(11,12)(13,14)(15,16)(17,18)(19,20)(21,22);(1,2)(6,7,9,11,13,15,17,19,21,22,20,18,16,14,12,10,8)60 conjugacy classes — view the full character table.
| maximal subgroup of | Dic3×D17, #87973, #87974, … |
| maximal normal subgroup of | Dic3×D17, #87973, #87974, … |
| maximal quotient of | C3×Dic34, C3×C4×D17, C3×D68, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(204, 9);