Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #1347 |
| automorphism | Aut(G) = C23×#21452 (order 2048) · Inn(G) = #102 · Out(G) = C24×C4 |
| homology | Abelianization (H1) = C2×C8 · Schur multiplier (H2) = C23 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | #102 |
| commutator | C2×C8 | C2×C8 |
| Frattini, cosocle | C2×C4×C8 | C22 |
| prime radical | C22×D8 | C4 |
| LCS | G ▷ C2×C8 ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C2×C42 ◁ C2×C4×C8 ◁ G | |
| LECS | G ▷ C2×C4×C8 ▷ C22×C4 ▷ C2 ▷ C1 | |
145 conjugacy classes of subgroups; only the 47 normal subgroups are shown.
This group has 145 conjugacy classes of subgroups — too many to draw. Only its 47 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 2 generators on 32 points:
(1,2)(3,7,8,5)(4,6)(9,10,11,13,12,14,15,16)(17,18)(19,22)(20,29)(21,25)(23,26)(24,27)(28,31)(30,32);(1,3)(2,5)(4,8)(6,7)(18,22)(19,26)(20,27)(23,24)(25,31)(28,32)(29,30)Polycyclic presentation:
2^8|a^2=d,c^2=fh,d^2=g,e^2=h,f^2=h,b^a=bc,c^a=ce,e^a=eh,f^a=fh,c^b=cf,d^b=defh,e^b=eh,f^b=fh58 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#7112, #124069, #124070, … |
| maximal normal subgroup of | C2×#7112, #124069, #124070, … |
| maximal quotient of | #92821, #92835, #92841, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 100);