Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #7694 |
| automorphism | Aut(G) order 16384 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C2×C22⋊C4 |
| commutator | C22×C4 | C22×C4 |
| Frattini, cosocle | C23×C4 | C23 |
| prime radical | C25 | D4 |
| LCS | G ▷ C22×C4 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C24×C4 ◁ G | |
| LECS | G ▷ C23×C4 ▷ C22 ▷ C1 | |
473 conjugacy classes of subgroups; only the 87 normal subgroups are shown.
This group has 473 conjugacy classes of subgroups — too many to draw. Only its 87 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)(7,9,11,12)(8,10)(13,14,16,18,17,20,15,19);(5,7)(6,9,10,12)(8,11)(14,18)(15,16)(19,20);(2,4)(7,11)(9,12)Polycyclic presentation:
2^8|a^2=f,b^2=df,d^2=gh,f^2=gh,b^a=bd,c^a=ce,d^a=dg,c^b=cg,d^b=dh,f^b=fh46 conjugacy classes — view the full character table.
| maximal subgroup of | #97758, #97759, #97760, … |
| maximal normal subgroup of | #97758, #97759, #97760, … |
| maximal quotient of | #99739, #99743, #99758, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 2139);