Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #10046 |
| automorphism | Aut(G) order 8192 |
| homology | Abelianization (H1) = C23 · Schur multiplier (H2) = C23 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | #120 |
| commutator, Frattini, cosocle | C2×C42 | C23 |
| prime radical | C22×D4 | D4 |
| LCS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
260 conjugacy classes of subgroups; only the 71 normal subgroups are shown.
This group has 260 conjugacy classes of subgroups — too many to draw. Only its 71 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 3 generators on 20 points:
(2,3)(5,6)(7,9)(8,10)(11,12)(13,14,16,15)(17,18,20,19);(1,2)(3,4)(6,9)(10,11)(13,15)(14,16)(17,19)(18,20);(1,3,4,2)(6,10)(8,12)(9,11)(14,18)(15,19)(17,20)Polycyclic presentation:
2^8|a^2=h,c^2=dg,e^2=g,f^2=h,b^a=bd,c^a=ce,e^a=eg,f^a=fh,c^b=cf,e^b=eh,f^b=fh,e^c=eg,f^c=fh46 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#10417, #239600, #239603, … |
| maximal normal subgroup of | C2×#10417, #239600, #239603, … |
| maximal quotient of | #104830, #104831, #104845, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 3405);