Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #2018 |
| automorphism | Aut(G) order 131072 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C27 |
| direct product | C2×#2018 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | #121 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C23×C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
1079 conjugacy classes of subgroups; only the 191 normal subgroups are shown.
This group has 1079 conjugacy classes of subgroups — too many to draw. Only its 191 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) = 64 |
A minimal faithful permutation representation — 4 generators on 22 points:
(1,2);(3,4)(5,6)(7,8)(9,17)(10,15)(11,14)(12,16)(13,18)(19,22)(20,21);(4,6)(7,9)(8,13)(10,19)(11,18)(12,20)(14,21)(15,17)(16,22);(8,14)(9,18)(10,11)(15,16)(17,21)(19,20)52 conjugacy classes — view the full character table.
| maximal subgroup of | #137147, #137155, #142236, … |
| maximal normal subgroup of | #137147, #137155, #142236, … |
| maximal quotient of | C2×#9974, C2×#9977, #232442, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 16423);