Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #12430 |
| automorphism | Aut(G) order 4096 |
| homology | Abelianization (H1) = C23 · Schur multiplier (H2) = C22 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #466 |
| commutator, Frattini, cosocle | C4×C8 | C23 |
| prime radical | #1667 | C2 |
| LCS | G ▷ C4×C8 ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C42 ◁ C8×D4 ◁ G | |
| LECS | G ▷ C4×C8 ▷ C2×C4 ▷ C2 ▷ C1 | |
120 conjugacy classes of subgroups; only the 41 normal subgroups are shown.
This group has 120 conjugacy classes of subgroups — too many to draw. Only its 41 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 24 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 3 generators on 24 points:
(1,2)(3,5)(4,6)(7,8)(10,14)(11,15)(12,18)(16,24)(17,22)(19,23)(20,21);(2,5)(6,7)(9,10,15,21,12,16,19,22,13,17,23,24,18,20,11,14);(2,6)(4,8)(5,7)Polycyclic presentation:
2^8|b^2=dfg,d^2=fh,e^2=g,f^2=h,b^a=bd,c^a=ce,d^a=df,e^a=eg,f^a=fh,e^c=eg49 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#12467, #490566, #490572, … |
| maximal normal subgroup of | C2×#12467, #490566, #490572, … |
| maximal quotient of | #134997, #138576, #138642, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 5455);