Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #327 |
| automorphism | Aut(G) = C23×C4×#120 (order 1024) · Inn(G) = C22⋊C4 · Out(G) = C24×C4 |
| homology | Abelianization (H1) = C2×C16 · Schur multiplier (H2) = C22 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center | C22×C4 | C22⋊C4 |
| commutator | C2×C4 | C2×C16 |
| Frattini, cosocle | C2×C4×C8 | C22 |
| socle, prime radical | C23 | C22⋊C8 |
| LCS | G ▷ C2×C4 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22×C4 ◁ C2×C4×C8 ◁ G | |
| LECS | G ▷ C2×C4×C8 ▷ C22×C4 ▷ C2 ▷ C1 | |
110 conjugacy classes of subgroups; only the 49 normal subgroups are shown.
This group has 110 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) = 32 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 2 generators on 32 points:
(1,2)(3,7,8,5)(4,6)(10,13,14,15)(17,18,19,22,20,23,25,28,21,24,26,29,27,30,31,32);(1,3,4,8)(2,5,6,7)(9,10)(11,15)(12,14)(13,16)Polycyclic presentation:
2^8|a^2=d,b^2=e,c^2=f,d^2=g,g^2=h,b^a=bc,c^a=ce,c^b=cf,d^b=def76 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#7118, #124076, #124077, … |
| maximal normal subgroup of | C2×#7118, #124076, #124077, … |
| maximal quotient of | #92869, #92870, #92871, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 106);