Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of D8 |
| automorphism | Aut(G) order 4096 |
| homology | Abelianization (H1) = C22×C16 · Schur multiplier (H2) = C23 |
| direct product | C2×Q8⋊C16 |
| subgroup | G/H | |
|---|---|---|
| center | C22×C8 | D4 |
| commutator | C4 | C22×C16 |
| Frattini, cosocle | C4×C8 | C23 |
| socle, prime radical | C23 | C22⋊C8 |
| LCS | G ▷ C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22×C8 ◁ C2×C4×C8 ◁ G | |
| LECS | G ▷ C4×C8 ▷ C2×C4 ▷ C2 ▷ C1 | |
191 conjugacy classes of subgroups; only the 103 normal subgroups are shown.
This group has 191 conjugacy classes of subgroups — too many to draw. Only its 103 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 26 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 3 generators on 26 points:
(1,2);(4,7)(5,9)(8,10)(11,12,13,16,14,17,19,22,15,18,20,23,21,24,25,26);(3,4,6,8)(5,10,9,7)112 conjugacy classes — view the full character table.
| maximal subgroup of | C4×Q8⋊C16, #128539, #128540, … |
| maximal normal subgroup of | C4×Q8⋊C16, #128539, #128540, … |
| maximal quotient of | C2×#7118, C2×#7128, #124130, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 4593);