Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #19162 |
| automorphism | Aut(G) order 8192 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | C2×#121 |
| commutator, Frattini, cosocle | C42 | C24 |
| prime radical | #3100 | C2 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C42 ▷ C22 ▷ C1 | |
364 conjugacy classes of subgroups; only the 115 normal subgroups are shown.
This group has 364 conjugacy classes of subgroups — too many to draw. Only its 115 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 16 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 4 generators on 16 points:
(1,2,6,8)(3,4,7,5)(9,10)(11,13)(12,14)(15,16);(1,3,5,2,6,7,4,8)(10,13)(14,15);(10,14)(12,16)(13,15);(1,4,6,5)(2,7,8,3)Polycyclic presentation:
2^8|a^2=g,b^2=eh,d^2=g,e^2=g,f^2=h,b^a=be,c^a=cf,e^a=eg,f^a=fh,d^b=dg,f^c=fh43 conjugacy classes — view the full character table.
| maximal subgroup of | #267475, #267477, #267479, … |
| maximal normal subgroup of | #267475, #267477, #267479, … |
| maximal quotient of | #189083, #197726, #197727, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 12157);