Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #453 |
| automorphism | Aut(G) order 393216 |
| homology | Abelianization (H1) = C25 · Schur multiplier (H2) = C210 |
| direct product | C22×#455 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | #120 |
| commutator, Frattini, cosocle | C2×C4 | C25 |
| prime radical | C22×H(5,𝔽2) | C2 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C23×C4 ◁ G | |
| LECS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
2555 conjugacy classes of subgroups; only the 567 normal subgroups are shown.
This group has 2555 conjugacy classes of subgroups — too many to draw. Only its 567 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);(5,6,9,12)(7,13,15,20)(8,16,18,11)(10,17,19,14);(5,7)(6,10)(8,17)(9,15)(11,20)(12,19)(13,16)(14,18);(8,18)(11,16)(13,20)(14,17)64 conjugacy classes — view the full character table.
| Fitting subgroup of | A4×#455 |
| maximal subgroup of | #147771, #152011, #364510, … |
| maximal normal subgroup of | #147771, #152011, #364510, … |
| maximal quotient of | C22×#1601, C22×#1602, C22×#1607, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 53367);