Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #447 |
| automorphism | Aut(G) order 16384 |
| homology | Abelianization (H1) = C2×C42 · Schur multiplier (H2) = C2×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center | C22×C4 | C2×D4 |
| commutator | C2×C4 | C2×C42 |
| Frattini, cosocle | C2×C42 | C23 |
| socle, prime radical | C23 | C2×C22⋊C4 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22×C4 ◁ C43 ◁ G | |
| LECS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
265 conjugacy classes of subgroups; only the 107 normal subgroups are shown.
This group has 265 conjugacy classes of subgroups — too many to draw. Only its 107 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) = 256 |
A minimal faithful permutation representation — 3 generators on 20 points:
(1,2,4,3)(5,6)(7,9)(8,11)(10,12)(13,14)(15,16)(17,20)(18,19);(6,9,11,10)(13,15,17,19,18,20,16,14);(1,3,4,2)(14,19)(15,20)Polycyclic presentation:
2^8|a^2=e,b^2=f,c^2=e,d^2=g,f^2=h,b^a=bd,c^a=ch,d^a=dg,f^a=fg,c^b=ch76 conjugacy classes — view the full character table.
| maximal subgroup of | #97975, #97977, #97979, … |
| maximal normal subgroup of | #97975, #97977, #97979, … |
| maximal quotient of | #96716, #96720, #96749, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 1168);