Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #7221 |
| 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 | |
143 conjugacy classes of subgroups; only the 47 normal subgroups are shown.
This group has 143 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) = 24 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 2 generators on 24 points:
(1,2)(3,7,8,5)(4,6)(10,14)(11,18)(12,19)(15,17)(16,23)(20,24)(21,22);(1,3)(2,5)(4,8)(6,7)(9,10,11,15,19,21,24,22,13,17,20,14,12,16,18,23)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=efg,f^a=fh,c^b=ch,d^b=dg40 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#7235, #127348, #127349, … |
| maximal normal subgroup of | C2×#7235, #127348, #127349, … |
| maximal quotient of | #93023, #93024, #93027, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 223);