Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #1504 |
| automorphism | Aut(G) order 131072 |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C24×C4 |
| direct product | C2×#1549 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C2×C22⋊C4 |
| commutator | C2×C4 | C23×C4 |
| Frattini, cosocle | C42 | C24 |
| prime radical | C24 | C22⋊C4 |
| LCS | G ▷ C2×C4 ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C22×C42 ◁ G | |
| LECS | G ▷ C42 ▷ C22 ▷ C1 | |
623 conjugacy classes of subgroups; only the 247 normal subgroups are shown.
This group has 623 conjugacy classes of subgroups — too many to draw. Only its 247 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) = 128 |
A minimal faithful permutation representation — 4 generators on 18 points:
(1,2);(3,4)(5,7)(6,8)(9,10)(11,12,15,18,16,13,14,17);(4,7)(5,10)(8,9)(11,13,16,12)(14,17,15,18);(4,8)(7,9)64 conjugacy classes — view the full character table.
| maximal subgroup of | #106171, #107428, #107650, … |
| maximal normal subgroup of | #106171, #107428, #107650, … |
| maximal quotient of | C2×#7576, C2×#7591, #160496, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 10694);