Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #2184 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C26 |
| direct product | C2×#2188 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C2×D8 |
| commutator, Frattini, cosocle | C2×C8 | C24 |
| prime radical | C24 | D8 |
| LCS | G ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C23×C4 ◁ C23×C8 ◁ G | |
| LECS | G ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1 | |
563 conjugacy classes of subgroups; only the 143 normal subgroups are shown.
This group has 563 conjugacy classes of subgroups — too many to draw. Only its 143 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 38 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 38 points:
(1,2);(3,4)(5,6)(7,8,12,16)(9,17,20,36)(10,21,25,35)(11,26,23,15)(13,28,30,18)(14,31,33,24)(19,37,27,32)(22,34,38,29);(7,9,12,20)(8,13,16,30)(10,22,25,38)(11,27,23,19)(14,32,33,37)(15,34,26,29)(17,35,36,21)(18,31,28,24);(4,6)58 conjugacy classes — view the full character table.
| maximal subgroup of | #137377, #137382, #138917, … |
| maximal normal subgroup of | #137377, #137382, #138917, … |
| maximal quotient of | C2×#12106, C2×#12282, C2×#12162, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 26501);