Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #32941 |
| automorphism | Aut(G) order 16384 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C26 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | C2×#121 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C23×C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
684 conjugacy classes of subgroups; only the 149 normal subgroups are shown.
This group has 684 conjugacy classes of subgroups — too many to draw. Only its 149 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) = 64 |
A minimal faithful permutation representation — 4 generators on 20 points:
(1,2)(3,4)(6,10)(7,14)(8,11)(13,18)(15,16)(17,19);(5,6,11,18,9,13,8,10)(7,12,14,19,16,20,15,17);(5,7)(6,12)(8,15)(9,16)(10,17)(11,14)(13,20)(18,19);(2,4)Polycyclic presentation:
2^8|b^2=eh,e^2=h,f^2=h,b^a=be,c^a=cf,d^a=dg,e^a=eh,f^a=fh,f^c=fh52 conjugacy classes — view the full character table.
| maximal subgroup of | #137980, #137983, #138253, … |
| maximal normal subgroup of | #137980, #137983, #138253, … |
| maximal quotient of | #347641, #347642, #347643, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 25930);