Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #12087 |
| automorphism | Aut(G) order 4096 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C2×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #442 |
| commutator | C2×C8 | C22×C4 |
| Frattini, cosocle | C22×C8 | C23 |
| prime radical | C23 | AGL(1,ℤ/8) |
| LCS | G ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C22×C4 ◁ C2×#97 ◁ G | |
| LECS | G ▷ C22×C8 ▷ C4 ▷ C2 ▷ C1 | |
157 conjugacy classes of subgroups; only the 59 normal subgroups are shown.
This group has 157 conjugacy classes of subgroups — too many to draw. Only its 59 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 36 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 3 generators on 36 points:
(1,2)(3,4)(5,6,10,15,11,17,29,16)(7,18,20,13,22,31,21,32)(8,23,24,35,26,12,25,30)(9,27,28,14,19,33,36,34);(5,7,19,8,10,21,36,25,11,22,9,26,29,20,28,24)(6,12,14,31,16,30,27,32,17,23,34,18,15,35,33,13);(2,4)(5,8,9,21,10,25,28,22,11,26,19,20,29,24,36,7)(6,13,14,23,16,31,27,35,17,32,34,12,15,18,33,30)Polycyclic presentation:
2^8|a^2=f,b^2=dfg,c^2=d,d^2=g,e^2=g,f^2=h,g^2=h,b^a=bd,c^a=ce,d^a=dg,e^a=eg,g^a=gh,c^b=cg,d^b=dh,e^b=eh,f^b=fh,f^c=fh34 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#13154, #494928, #494929, … |
| maximal normal subgroup of | C2×#13154, #494928, #494929, … |
| maximal quotient of | #140187, #140209, #140282, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 6142);