Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #13304 |
| automorphism | Aut(G) = C27×#442 (order 8192) · Inn(G) = C2×D8 · Out(G) = C26×C4 |
| homology | Abelianization (H1) = C23 · Schur multiplier (H2) = C23 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C2×D8 |
| commutator, Frattini, cosocle | C22×C8 | C23 |
| prime radical | C22×D8 | C22 |
| LCS | G ▷ C22×C8 ▷ C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C2×C42 ◁ C2×C4×C8 ◁ G | |
| LECS | G ▷ C22×C8 ▷ C4 ▷ C2 ▷ C1 | |
223 conjugacy classes of subgroups; only the 65 normal subgroups are shown.
This group has 223 conjugacy classes of subgroups — too many to draw. Only its 65 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)(3,4)(9,10,17,23)(11,21,13,12)(14,24,15,20)(16,18,19,22);(5,6)(7,8)(9,11)(10,18)(12,21)(13,17)(14,19)(15,16)(22,23);(2,4)(6,8)(9,12,13,10,19,20,14,18,17,21,11,23,16,24,15,22)Polycyclic presentation:
2^8|a^2=h,c^2=d,d^2=gh,e^2=g,f^2=g,g^2=h,b^a=bd,c^a=ce,d^a=dg,e^a=egh,f^a=fgh,g^a=gh,c^b=cf,d^b=dg,e^b=egh,f^b=fgh,g^b=gh52 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#13449, #499168, #499170, … |
| maximal normal subgroup of | C2×#13449, #499168, #499170, … |
| maximal quotient of | #145368, #145369, #145384, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 6437);