Finite Group DatabasebetaFinite Group Databasebeta| order | 18774 |
| automorphism | ? |
| homology | Abelianization (H1) = C2×C9 · Schur multiplier (H2) = C1 |
| direct product | C7⋊C9×D149 |
| unambiguous semidirect product | C149⋊(C2×C7⋊C9) |
| unambiguous semidirect product | (C7×D149)⋊C9 |
| derived, Hall | C7×C149 ⋊ C2×C9 |
| Hall | C7⋊C9×C149 ⋊ C2 |
| Hall | C7×D149 ⋊ C9 |
| Sylow | C149 ⋊ C2×C7⋊C9 |
| Sylow | C7 ⋊ C9×D149 |
| subgroup | G/H | |
|---|---|---|
| center, Frattini, hypercenter | C3 | ΓL(1,𝔽8)×D149 |
| commutator, hypocenter | C7×C149 | C2×C9 |
| Fitting, socle, cosocle | C3×C7×C149 | C2×C3 |
| prime radical | C3×C7×D149 | C3 |
| LCS | G ▷ C7×C149 | |
| UCS | C1 ◁ C3 | |
24 conjugacy classes of subgroups.
| transitive degree | μt(G) = 9387 |
1140 conjugacy classes. The character table is too large to display.
| maximal subgroup of | (C7⋊C9)⋊#10597010, D7⋊C9×D149, C7⋊C9×#10597010, … |
| maximal normal subgroup of | (C7⋊C9)⋊#10597010, D7⋊C9×D149, C7⋊C9×#10597010, … |
| maximal quotient of | C7⋊C9×Dic149, C2×C7⋊C9×D149 |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(18774, 10);