Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #30490 |
| automorphism | Aut(G) order 16384 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | D42 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C22×C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
530 conjugacy classes of subgroups; only the 115 normal subgroups are shown.
This group has 530 conjugacy classes of subgroups — too many to draw. Only its 115 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) = 32 |
A minimal faithful permutation representation — 4 generators on 20 points:
(1,2)(3,4)(5,6,9,12,10,13,20,19)(7,11,15,18,17,8,16,14);(5,6)(7,14)(8,15)(9,19)(10,13)(11,16)(12,20)(17,18);(2,4)(5,7,10,17)(6,11,13,8)(9,15,20,16)(12,18,19,14);(2,4)(5,8)(6,7)(9,18)(10,11)(12,16)(13,17)(14,20)(15,19)Polycyclic presentation:
2^8|a^2=e,c^2=h,e^2=h,g^2=h,b^a=be,c^a=cf,d^a=defh,c^b=cg,d^b=de,e^b=eh,g^b=gh,g^c=gh,e^d=eh34 conjugacy classes — view the full character table.
| maximal subgroup of | #153163, #153164, #153169, … |
| maximal normal subgroup of | #153163, #153164, #153169, … |
| maximal quotient of | #332986, #332992, #332999, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 23481);