Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #9159 |
| automorphism | Aut(G) = C23×#7737411 (order 4096) · Inn(G) = #386 · Out(G) = C26 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #386 |
| commutator | C42 | C22×C4 |
| Frattini, cosocle | C2×C42 | C23 |
| prime radical | #532 | C22 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
272 conjugacy classes of subgroups; only the 75 normal subgroups are shown.
This group has 272 conjugacy classes of subgroups — too many to draw. Only its 75 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 24 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 3 generators on 24 points:
(1,2,3,6,4,7,8,5)(9,10,13,18)(11,19)(12,15)(14,17,22,24)(16,20)(21,23);(2,5)(3,8)(6,7)(9,11,13,12)(10,15)(14,21,22,20)(16,17)(18,19)(23,24);(9,12,13,11)(10,16,18,23)(14,20,22,21)(15,17,19,24)Polycyclic presentation:
2^8|a^2=f,b^2=dfh,c^2=g,d^2=gh,e^2=g,f^2=gh,b^a=bd,c^a=ce,d^a=dg,d^b=dh,e^b=eg,f^b=fh,d^c=dg,e^c=eg,f^c=fg43 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#9180, #197221, #197229, … |
| maximal normal subgroup of | C2×#9180, #197221, #197229, … |
| maximal quotient of | #99796, #99800, #99814, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 2168);