Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #11704 |
| automorphism | Aut(G) order 8192 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C23 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | C2×#102 |
| commutator | C2×C8 | C22×C4 |
| Frattini, cosocle | C4×C8 | C23 |
| prime radical | #3169 | C2 |
| LCS | G ▷ C2×C8 ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C2×C42 ◁ C2×C4×C8 ◁ G | |
| LECS | G ▷ C4×C8 ▷ C2×C4 ▷ C2 ▷ C1 | |
175 conjugacy classes of subgroups; only the 61 normal subgroups are shown.
This group has 175 conjugacy classes of subgroups — too many to draw. Only its 61 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 — 3 generators on 32 points:
(1,2,5,10,6,9,4,8)(3,11,12,16,13,7,14,15)(17,18,20,23,22,26,19,27,21,24,28,31,29,32,30,25);(1,3)(2,7)(4,12)(5,14)(6,13)(8,15)(9,11)(10,16)(18,23)(19,28)(20,30)(22,29)(24,31)(25,26)(27,32);(1,4,6,5)(2,8,9,10)(3,12,13,14)(7,15,11,16)(18,24)(23,31)(25,27)(26,32)Polycyclic presentation:
2^8|a^2=e,c^2=fh,d^2=gh,e^2=fgh,g^2=h,b^a=bd,c^a=ch,d^a=df,d^b=dg,e^b=efg,g^b=gh46 conjugacy classes — view the full character table.
| maximal subgroup of | #129011, #129029, #131631, … |
| maximal normal subgroup of | #129011, #129029, #131631, … |
| maximal quotient of | #124110, #124181, #124969, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 4940);