Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #1284 |
| automorphism | Aut(G) order 16384 |
| homology | Abelianization (H1) = C2×C42 · Schur multiplier (H2) = C23 |
| direct product | C2×#1291 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | #95 |
| commutator | C2×C4 | C2×C42 |
| Frattini, cosocle | C2×C42 | C23 |
| prime radical | C24 | C4⋊C4 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C22×C42 ◁ G | |
| LECS | G ▷ C2×C42 ▷ C22 ▷ C1 | |
305 conjugacy classes of subgroups; only the 127 normal subgroups are shown.
This group has 305 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 — 3 generators on 26 points:
(1,2);(3,4)(5,7)(6,9)(8,10)(11,12,14,19,16,18,15,20)(13,21,22,26,23,17,24,25);(4,7,9,8)(11,13,15,22,16,23,14,24)(12,17,20,25,18,21,19,26)64 conjugacy classes — view the full character table.
| maximal subgroup of | C4×#1291, #105403, #105550, … |
| maximal normal subgroup of | C4×#1291, #105403, #105550, … |
| maximal quotient of | C2×#7019, #95035, #95041, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 979);