Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #2018 |
| automorphism | Aut(G) order 32768 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C26 |
| direct product | C2×#2052 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | #121 |
| commutator, Frattini, cosocle | C22×C4 | C24 |
| prime radical | C22×#41 | C22 |
| LCS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C23×C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
681 conjugacy classes of subgroups; only the 175 normal subgroups are shown.
This group has 681 conjugacy classes of subgroups — too many to draw. Only its 175 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 — 4 generators on 22 points:
(1,2);(3,4)(5,6)(7,8)(9,17)(10,11)(12,15)(13,16)(14,19)(18,21)(20,22);(7,9,13,21)(8,14,16,22)(10,17,15,18)(11,20,12,19);(4,6)(7,10,11,8,13,15,12,16)(9,18,19,14,21,17,20,22)52 conjugacy classes — view the full character table.
| maximal subgroup of | C4×#2052, #359165, #376296, … |
| maximal normal subgroup of | C4×#2052, #359165, #376296, … |
| maximal quotient of | C2×#10532, C2×#10534, C2×#10533, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 16517);