Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #10012 |
| automorphism | Aut(G) = C22×#72210469 (order 4096) · Inn(G) = #127 · Out(G) = C22×#120 |
| homology | Abelianization (H1) = C23 · Schur multiplier (H2) = C22 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center | C2×C4 | #127 |
| commutator, Frattini, cosocle | C2×C42 | C23 |
| socle | C22 | #399 |
| prime radical | C22×D4 | Q8 |
| LCS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C2×C4 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
178 conjugacy classes of subgroups; only the 53 normal subgroups are shown.
This group has 178 conjugacy classes of subgroups — too many to draw. Only its 53 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) = 64 |
A minimal faithful permutation representation — 3 generators on 24 points:
(1,2,3,7,5,8,4,6)(9,10,12,16,13,15,18,22)(11,17,19,23,20,24,21,14);(2,6)(3,4)(7,8)(9,11,18,19,13,20,12,21)(10,14,22,17,15,23,16,24);(2,7)(3,4)(6,8)(10,15)(16,22)Polycyclic presentation:
2^8|a^2=d,b^2=de,d^2=g,e^2=h,b^a=bd,c^a=ce,f^a=fgh,c^b=cf,d^b=dg,e^b=eg,d^c=dh,e^c=eh40 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#10659, #243830, #243831, … |
| maximal normal subgroup of | C2×#10659, #243830, #243831, … |
| maximal quotient of | #105229, #105230, #105235, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 3647);