Finite Group DatabasebetaFinite Group Databasebeta| order | 128 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of D8 |
| automorphism | Aut(G) order 8192 |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C25 |
| direct product | C2×C4×SD16 |
| subgroup | G/H | |
|---|---|---|
| center | C22×C4 | D4 |
| commutator | C4 | C23×C4 |
| Frattini, cosocle | C2×C4 | C24 |
| socle | C23 | C2×D4 |
| prime radical | C22×D4 | C22 |
| LCS | G ▷ C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22×C4 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
276 conjugacy classes of subgroups; only the 156 normal subgroups are shown.
This group has 276 conjugacy classes of subgroups — too many to draw. Only its 156 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 14 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 4 generators on 14 points:
(1,2);(3,4,5,6);(7,8,9,10,11,12,13,14);(8,10)(9,13)(12,14)56 conjugacy classes — view the full character table.
| maximal subgroup of | #8945, #8948, #8949, … |
| maximal normal subgroup of | #8945, #8948, #8949, … |
| maximal quotient of | C2×C8×SD16, C2×#1583, C2×#1582, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(128, 1669);