Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #353 |
| automorphism | Aut(G) order 98304 |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C26 |
| direct product | C22×#355 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | #99 |
| commutator | C2×C4 | C23×C4 |
| Frattini, cosocle | C2×Q8 | C24 |
| prime radical | C23×D4 | C4 |
| LCS | G ▷ C2×C4 ▷ C22 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C24 ◁ C23×Q8 ◁ G | |
| LECS | G ▷ C2×Q8 ▷ C22 ▷ C2 ▷ C1 | |
691 conjugacy classes of subgroups; only the 191 normal subgroups are shown.
This group has 691 conjugacy classes of subgroups — too many to draw. Only its 191 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 — 4 generators on 20 points:
(1,2);(3,4);(5,6,8,12,9,13,17,20)(7,11,15,19,14,10,16,18);(6,10)(7,14)(11,13)(12,19)(15,16)(18,20)52 conjugacy classes — view the full character table.
| Fitting subgroup of | A4×#355 |
| maximal subgroup of | #146629, #146631, #146648, … |
| maximal normal subgroup of | #146629, #146631, #146648, … |
| maximal quotient of | C22×#1318, C22×#1324, C2×#11476, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 26351);