Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #2846 |
| automorphism | Aut(G) order 524288 |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C23×C42 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, Frattini, socle, prime radical, cosocle | C24 | C24 |
| commutator | C23 | C23×C4 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C24 ◁ G | |
| LECS | G ▷ C24 ▷ C1 | |
783 conjugacy classes of subgroups; only the 319 normal subgroups are shown.
This group has 783 conjugacy classes of subgroups — too many to draw. Only its 319 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 — 4 generators on 20 points:
(2,3)(6,8)(9,10,12,11)(15,19)(17,20);(5,6)(7,8)(9,11,12,10);(1,2,4,3)(13,14,16,18)(15,17,19,20);(1,3,4,2)(13,15)(14,17)(16,19)(18,20)Polycyclic presentation:
2^8|a^2=h,b^2=h,c^2=g,d^2=f,b^a=be,c^a=cf,d^a=dg88 conjugacy classes — view the full character table.
| maximal subgroup of | #101960, #101968, #101974, … |
| maximal normal subgroup of | #101960, #101968, #101974, … |
| maximal quotient of | #154083, #154087, #154091, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 7695);