Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #471 |
| automorphism | Aut(G) order 393216 |
| homology | Abelianization (H1) = C25 · Schur multiplier (H2) = C29 |
| direct product | C22×#472 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | #121 |
| commutator, Frattini, cosocle | C2×C4 | C25 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C23×C4 ◁ G | |
| LECS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
1443 conjugacy classes of subgroups; only the 527 normal subgroups are shown.
This group has 1443 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) = 20 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 5 generators on 20 points:
(1,2);(3,4);(6,10)(7,14)(8,11)(13,18)(15,16)(17,19);(5,6,11,18,9,13,8,10)(7,12,14,19,16,20,15,17);(5,7)(6,12)(8,15)(9,16)(10,17)(11,14)(13,20)(18,19)64 conjugacy classes — view the full character table.
| Fitting subgroup of | A4×#472 |
| maximal subgroup of | #147670, #147674, #147676, … |
| maximal normal subgroup of | #147670, #147674, #147676, … |
| maximal quotient of | C22×#1667, C22×#1675, C22×#1677, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 53452);