Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #9159 |
| automorphism | Aut(G) = C23×D43 (order 4096) · Inn(G) = #386 · Out(G) = C26 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C23 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #386 |
| commutator | C42 | C22×C4 |
| Frattini, cosocle | C2×C42 | C23 |
| prime radical | C2×#41 | D4 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
239 conjugacy classes of subgroups; only the 77 normal subgroups are shown.
This group has 239 conjugacy classes of subgroups — too many to draw. Only its 77 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) = 128 |
A minimal faithful permutation representation — 3 generators on 24 points:
(1,2,4,6,5,8,3,7)(9,10,14,16,13,12,18,21)(11,17,19,24,20,15,22,23);(2,6)(3,4)(7,8)(9,11,18,19,13,20,14,22)(10,15,16,24,12,17,21,23);(9,12)(10,13)(11,17)(14,16)(15,20)(18,21)(19,23)(22,24)Polycyclic presentation:
2^8|a^2=f,b^2=df,d^2=gh,e^2=g,f^2=h,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×#9167, #197118, #197128, … |
| maximal normal subgroup of | C2×#9167, #197118, #197128, … |
| maximal quotient of | #99787, #99788, #99805, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 2155);