Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #2184 |
| automorphism | Aut(G) order 65536 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C25 |
| direct product | C2×#2233 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C2×D8 |
| commutator, Frattini, cosocle | C2×C8 | C24 |
| prime radical | C2×#466 | C2 |
| LCS | G ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C23×C4 ◁ C23×C8 ◁ G | |
| LECS | G ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1 | |
341 conjugacy classes of subgroups; only the 127 normal subgroups are shown.
This group has 341 conjugacy classes of subgroups — too many to draw. Only its 127 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)(13,16)(14,17)(15,23)(18,22)(19,21)(20,24)(25,26);(4,7)(8,10)(12,16)(17,24)(18,25)(19,23);(3,5,6,9)(4,8,7,10)(12,17)(14,22)(15,21)(16,24)(18,19)(20,26)(23,25)58 conjugacy classes — view the full character table.
| maximal subgroup of | #137430, #137435, #138971, … |
| maximal normal subgroup of | #137430, #137435, #138971, … |
| maximal quotient of | C2×#12867, C2×#12920, C2×#12991, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 26631);