| order | 1280 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #12117 |
| automorphism | ? |
| homology | Abelianization (H1) = C23×C5 · Schur multiplier (H2) = C23 |
| direct product | C5×#12118 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C2×C5 | #1595 |
| commutator, Frattini, cosocle | C2×M16 | C23×C5 |
| prime radical | C5×#2017 | C2 |
| LCS | G ▷ C2×M16 ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C2×C5 ◁ C2×C4×C5 ◁ C2×C5×M16 ◁ G | |
392 conjugacy classes of subgroups; only the 70 normal subgroups are shown.
This group has 392 conjugacy classes of subgroups — too many to draw. Only its 70 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 69 |
| transitive degree | μt(G) = 320 |
A minimal faithful permutation representation — 3 generators on 69 points:
(1,2,3,4,5)(6,7)(8,20)(9,25)(10,29)(11,18)(12,17)(13,19)(14,22)(15,27)(16,32)(21,49)(23,57)(24,48)(26,60)(28,45)(30,38)(31,41)(33,46)(34,42)(35,44)(36,43)(37,64)(39,55)(40,56)(47,51)(50,58)(52,69)(53,67)(54,65)(59,63)(61,66)(62,68);(6,8,13,24)(7,14,19,40)(9,21,28,53)(10,30,33,55)(11,23,12,36)(15,37,42,66)(16,43,44,57)(17,39,18,38)(20,46,48,29)(22,35,56,32)(25,58,45,65)(26,61,31,64)(27,51,34,52)(41,67,60,49)(47,68,69,59)(50,62,54,63);(6,9)(7,15)(8,21)(10,31)(11,34)(12,27)(13,28)(14,37)(16,41)(17,45)(18,25)(19,42)(20,47)(22,54)(23,52)(24,53)(26,33)(29,59)(30,64)(32,62)(35,63)(36,51)(38,58)(39,65)(40,66)(43,67)(44,60)(46,68)(48,69)(49,57)(50,56)(55,61)125 conjugacy classes — view the full character table.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(1280, 5106);