Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #1595 |
| automorphism | Aut(G) order 32768 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C26 |
| direct product | C2×#1613 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | #120 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| prime radical | C2×#534 | C2 |
| LCS | G ▷ C22×C4 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C23×C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C22 ▷ C1 | |
762 conjugacy classes of subgroups; only the 135 normal subgroups are shown.
This group has 762 conjugacy classes of subgroups — too many to draw. Only its 135 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 18 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 4 generators on 18 points:
(1,2);(3,4,6,9)(5,7,10,8)(12,15)(13,17)(16,18);(4,7)(5,10)(8,9)(11,12)(13,18)(14,16)(15,17);(13,17)(15,18)46 conjugacy classes — view the full character table.
| maximal subgroup of | #137409, #137411, #137418, … |
| maximal normal subgroup of | #137409, #137411, #137418, … |
| maximal quotient of | C2×#7786, C2×#7800, C2×#7822, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 11090);