Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #7217 |
| automorphism | Aut(G) order 4096 |
| homology | Abelianization (H1) = C42 · Schur multiplier (H2) = C22 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #340 |
| commutator | C2×C8 | C42 |
| Frattini, cosocle | C23×C8 | C22 |
| prime radical | C24 | SD16 |
| LCS | G ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C23×C4 ◁ C23×C8 ◁ G | |
| LECS | G ▷ C23×C8 ▷ C2×C4 ▷ C2 ▷ C1 | |
146 conjugacy classes of subgroups; only the 49 normal subgroups are shown.
This group has 146 conjugacy classes of subgroups — too many to draw. Only its 49 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 — 2 generators on 24 points:
(1,2)(3,7,8,5)(4,6)(10,15,16,17)(11,19)(12,21)(13,20)(18,24,22,23);(1,3)(2,5)(4,8)(6,7)(9,10,12,17,13,18,21,24,14,16,11,15,20,22,19,23)Polycyclic presentation:
2^8|a^2=d,b^2=e,c^2=fgh,e^2=fgh,f^2=h,b^a=bc,c^a=cf,e^a=efgh,f^a=fh,d^b=dg52 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#7232, #127344, #127345, … |
| maximal normal subgroup of | C2×#7232, #127344, #127345, … |
| maximal quotient of | #93013, #93014, #93017, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 220);