Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #9239 |
| automorphism | Aut(G) = C23×D4×#120 (order 2048) · Inn(G) = #386 · Out(G) = C25 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C23 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #386 |
| commutator | C22×C4 | C22×C4 |
| Frattini, cosocle | C2×C42 | C23 |
| prime radical | C22×D8 | C4 |
| LCS | G ▷ C22×C4 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
257 conjugacy classes of subgroups; only the 63 normal subgroups are shown.
This group has 257 conjugacy classes of subgroups — too many to draw. Only its 63 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:
(1,2,4,7,5,6,8,3)(9,10,13,16,14,18,12,17)(11,19,21,23,22,24,20,15);(1,3,4,6,5,7,8,2)(9,11)(10,15,18,23)(12,20)(13,21)(14,22)(16,19,17,24);(10,16)(12,13)(15,19)(17,18)(20,21)(23,24)Polycyclic presentation:
2^8|a^2=f,b^2=df,d^2=gh,e^2=gh,f^2=g,b^a=bd,c^a=ce,d^a=dg,d^b=dh,e^b=egh,f^b=fh,d^c=dgh,e^c=egh,f^c=fgh43 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#9243, #198184, #198185, … |
| maximal normal subgroup of | C2×#9243, #198184, #198185, … |
| maximal quotient of | #99883, #99885, #99895, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 2231);