Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #32878 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C23×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C22×D4 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| prime radical | C22×D4 | C23 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C43 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
487 conjugacy classes of subgroups; only the 143 normal subgroups are shown.
This group has 487 conjugacy classes of subgroups — too many to draw. Only its 143 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) = 128 |
A minimal faithful permutation representation — 4 generators on 20 points:
(2,3)(5,6)(7,10)(8,9)(11,12)(13,14,15,17)(16,18,20,19);(1,2,4,3)(6,9)(10,12)(14,17)(18,19);(1,3,4,2)(5,7,8,11)(6,10,9,12)(14,17)(18,19);(14,18)(16,20)(17,19)Polycyclic presentation:
2^8|a^2=h,b^2=fh,c^2=eh,g^2=h,b^a=be,c^a=cf,d^a=dg,g^a=gh,g^d=gh58 conjugacy classes — view the full character table.
| maximal subgroup of | #100275, #100278, #100291, … |
| maximal normal subgroup of | #100275, #100278, #100291, … |
| maximal quotient of | #350912, #350914, #350916, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 26020);