Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #1595 |
| automorphism | Aut(G) order 8192 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C25 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | #120 |
| commutator | C22×C4 | C22×C4 |
| Frattini, cosocle | C23×C4 | C23 |
| prime radical | C25 | D4 |
| LCS | G ▷ C22×C4 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C23×C4 ◁ G | |
| LECS | G ▷ C23×C4 ▷ C22 ▷ C1 | |
510 conjugacy classes of subgroups; only the 95 normal subgroups are shown.
This group has 510 conjugacy classes of subgroups — too many to draw. Only its 95 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 — 3 generators on 20 points:
(1,2)(3,4)(5,6)(7,8,11,12)(9,10)(13,14,17,20,18,15,16,19);(2,4)(5,7)(6,8)(9,11)(10,12)(13,15,18,14)(16,19,17,20);(5,8)(6,7)(9,12)(10,11)Polycyclic presentation:
2^8|a^2=f,b^2=h,d^2=h,f^2=h,b^a=bd,c^a=ce,d^a=dg,e^a=eg,d^b=dh,e^b=eg,f^b=fgh,d^c=dg,f^c=fg46 conjugacy classes — view the full character table.
| maximal subgroup of | #137089, #137090, #137091, … |
| maximal normal subgroup of | #137089, #137090, #137091, … |
| maximal quotient of | #96952, #96961, #97097, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 1393);