Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of D8 |
| automorphism | Aut(G) order 16384 |
| homology | Abelianization (H1) = C2×C4×C8 · Schur multiplier (H2) = C24 |
| direct product | C2×#1278 |
| subgroup | G/H | |
|---|---|---|
| center | C2×C42 | D4 |
| commutator | C4 | C2×C4×C8 |
| Frattini, cosocle | C2×C42 | C23 |
| socle | C23 | #95 |
| prime radical | C24 | C4⋊C4 |
| LCS | G ▷ C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C42 ◁ C22×C42 ◁ G | |
| LECS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
391 conjugacy classes of subgroups.
| minimal degree | μ(G) = 18 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 3 generators on 18 points:
(1,2);(3,4)(5,7)(6,9)(8,10)(11,12,14,17,16,18,15,13);(4,7,9,8)(11,13,15,18,16,17,14,12)112 conjugacy classes — view the full character table.
| maximal subgroup of | C8×#341, #105289, #105290, … |
| maximal normal subgroup of | C8×#341, #105289, #105290, … |
| maximal quotient of | C2×#7015, #94879, #94881, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 869);