Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #447 |
| automorphism | Aut(G) order 1572864 |
| homology | Abelianization (H1) = C25 · Schur multiplier (H2) = C28 |
| direct product | C22×#485 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C24 | C2×D4 |
| commutator, Frattini, cosocle | C2×C4 | C25 |
| prime radical | C25 | D4 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C24 ◁ C24×C4 ◁ G | |
| LECS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
1179 conjugacy classes of subgroups; only the 527 normal subgroups are shown.
This group has 1179 conjugacy classes of subgroups — too many to draw. Only its 527 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 5 generators on 28 points:
(1,2);(3,4);(5,6)(7,10)(8,9)(11,12)(13,14,17,21)(15,18,23,27)(16,19,24,20)(22,25,28,26);(6,9)(10,12)(13,15,17,23)(14,18,21,27)(16,22,24,28)(19,25,20,26);(5,7,8,11)(6,10,9,12)(14,19)(16,24)(18,25)(20,21)(22,28)(26,27)76 conjugacy classes — view the full character table.
| Fitting subgroup of | A4×#485 |
| maximal subgroup of | #114520, #114725, C2×#9240, … |
| maximal normal subgroup of | #114520, #114725, C2×#9240, … |
| maximal quotient of | C22×#1825, C22×#1854, C22×#1873, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 53491);