Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of D8 |
| automorphism | Aut(G) order 131072 |
| homology | Abelianization (H1) = C22×C42 · Schur multiplier (H2) = C24×C4 |
| direct product | C2×C4×#108 |
| subgroup | G/H | |
|---|---|---|
| center | C2×C42 | D4 |
| commutator | C4 | C22×C42 |
| Frattini, cosocle | C22×C4 | C24 |
| socle | C23 | C2×C4⋊C4 |
| prime radical | C24 | C2×Q8 |
| LCS | G ▷ C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C42 ◁ C22×C42 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
543 conjugacy classes of subgroups; only the 367 normal subgroups are shown.
This group has 543 conjugacy classes of subgroups — too many to draw. Only its 367 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 22 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 22 points:
(1,2);(3,4,5,6);(7,8,11,14,12,15,10,20)(9,16,18,21,19,22,17,13);(7,9,10,17,12,19,11,18)(8,13,14,16,15,21,20,22)112 conjugacy classes — view the full character table.
| maximal subgroup of | #108847, #108848, #108849, … |
| maximal normal subgroup of | #108847, #108848, #108849, … |
| maximal quotient of | C2×C4×#334, C2×C4×#335, C4×#1564, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 13444);