Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #465 |
| automorphism | Aut(G) order 32768 |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C25 |
| direct product | C2×#1589 |
| subgroup | G/H | |
|---|---|---|
| center | C22×C4 | C2×D4 |
| commutator | C2×C4 | C23×C4 |
| Frattini, cosocle | C42 | C24 |
| socle | C23 | C4×D4 |
| prime radical | C22×D8 | C4 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22×C4 ◁ C2×C4×C8 ◁ G | |
| LECS | G ▷ C42 ▷ C22 ▷ C1 | |
411 conjugacy classes of subgroups; only the 183 normal subgroups are shown.
This group has 411 conjugacy classes of subgroups — too many to draw. Only its 183 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 18 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 18 points:
(1,2);(3,4)(5,7)(6,9)(8,10)(11,12,15,13,14,16,18,17);(4,7)(5,10)(8,9)(12,16)(13,17);(11,13,15,16,14,17,18,12)88 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#7072, #122490, #122498, … |
| maximal normal subgroup of | C2×#7072, #122490, #122498, … |
| maximal quotient of | C2×#8206, C2×#8282, C4×#1589, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 10871);