Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #19552 |
| automorphism | Aut(G) order 8192 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | C2×#121 |
| commutator, Frattini, cosocle | C42 | C24 |
| prime radical | #532 | C22 |
| LCS | G ▷ C42 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C42 ▷ C22 ▷ C1 | |
292 conjugacy classes of subgroups; only the 107 normal subgroups are shown.
This group has 292 conjugacy classes of subgroups — too many to draw. Only its 107 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 32 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 32 points:
(1,2,6,10)(3,11,13,14)(4,8,7,16)(5,12,15,9)(19,25)(20,27)(22,29)(24,31)(26,28)(30,32);(1,3,5,8,6,13,15,16)(2,7,9,11,10,4,12,14)(17,18)(19,22)(20,24)(21,23)(25,29)(26,30)(27,31)(28,32);(1,4)(2,8)(3,12)(5,14)(6,7)(9,13)(10,16)(11,15)(17,19,21,26)(18,22,23,30)(20,28,27,25)(24,32,31,29);(3,13)(4,7)(8,16)(11,14)(18,23)(22,30)(24,31)(29,32)Polycyclic presentation:
2^8|a^2=g,b^2=e,c^2=h,e^2=g,f^2=h,b^a=be,c^a=cf,e^a=eg,f^a=fh,d^b=dgh,d^c=dg,f^c=fh40 conjugacy classes — view the full character table.
| maximal subgroup of | #285436, #285438, #285451, … |
| maximal normal subgroup of | #285436, #285438, #285451, … |
| maximal quotient of | #189165, #197906, #197989, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 12553);