Finite Group DatabasebetaFinite Group Databasebeta| order | 128 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #471 |
| automorphism | Aut(G) order 4096 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C25 |
| direct product | C2×#473 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | #121 |
| commutator, Frattini, cosocle | C2×C4 | C24 |
| prime radical | C2×#41 | C22 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C22×C4 ◁ G | |
| LECS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
224 conjugacy classes of subgroups; only the 100 normal subgroups are shown.
This group has 224 conjugacy classes of subgroups — too many to draw. Only its 100 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 34 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 4 generators on 34 points:
(1,2);(3,4,9,14)(5,15,19,25)(6,20,22,28)(7,13,8,12)(10,18,26,17)(11,23,27,21)(16,30,32,24)(29,33,34,31);(3,5,8,18,9,19,7,17)(4,10,13,25,14,26,12,15)(6,16,23,33,22,32,21,31)(11,24,28,34,27,30,20,29);(3,6)(4,11)(5,16)(7,21)(8,23)(9,22)(10,24)(12,20)(13,28)(14,27)(15,29)(17,31)(18,33)(19,32)(25,34)(26,30)32 conjugacy classes — view the full character table.
| maximal subgroup of | #12997, #13006, #13069, … |
| maximal normal subgroup of | #12997, #13006, #13069, … |
| maximal quotient of | C2×#1669, C2×#1673, C2×#1679, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(128, 1798);