Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #2018 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C25 |
| direct product | C2×#2078 |
| 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 | |
475 conjugacy classes of subgroups; only the 159 normal subgroups are shown.
This group has 475 conjugacy classes of subgroups — too many to draw. Only its 159 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 26 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 26 points:
(1,2);(3,4)(5,8)(6,7)(9,10)(11,12,14,19,16,20,15,18)(13,17,22,25,23,24,21,26);(4,7)(8,10)(11,13)(12,17)(14,22)(15,21)(16,23)(18,26)(19,25)(20,24);(3,5,6,9)(4,8,7,10)(12,18)(13,21)(14,15)(17,24)(19,20)(22,23)52 conjugacy classes — view the full character table.
| maximal subgroup of | #137229, #137235, #142348, … |
| maximal normal subgroup of | #137229, #137235, #142348, … |
| maximal quotient of | C2×#10615, C2×#10616, C2×#10625, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 16632);