Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #560 |
| automorphism | Aut(G) order 1572864 |
| homology | Abelianization (H1) = C24×C4 · Schur multiplier (H2) = C28 |
| direct product | C2×#2383 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C24 | C24 |
| commutator | C22 | C24×C4 |
| Frattini, cosocle | C23 | C25 |
| prime radical | C25 | C23 |
| LCS | G ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C24 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
1251 conjugacy classes of subgroups; only the 743 normal subgroups are shown.
This group has 1251 conjugacy classes of subgroups — too many to draw. Only its 743 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 22 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 5 generators on 22 points:
(1,2);(3,4,5,6)(8,11)(9,13)(15,16,19,17)(18,21,22,20);(8,11)(12,14)(16,17)(18,22);(7,8)(9,12)(10,11)(13,14)(15,17,19,16)(18,21,22,20);(7,9,10,13)(8,12,11,14)(15,18)(16,20)(17,21)(19,22)76 conjugacy classes — view the full character table.
| Fitting subgroup of | C2×(#126⋊C3)⋊C4 |
| maximal subgroup of | C4×#2383, #513874, #513949, … |
| maximal normal subgroup of | C4×#2383, #513874, #513949, … |
| maximal quotient of | C2×#13830, C2×#13831, C2×#13833, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 27337);