Finite Group DatabasebetaFinite Group Databasebeta| order | 128 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #120 |
| automorphism | Aut(G) order 32768 |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C24×C4 |
| direct product | C2×#387 |
| subgroup | G/H | |
|---|---|---|
| center, socle, prime radical | C24 | C23 |
| commutator | C22 | C23×C4 |
| Frattini, cosocle | C23 | C24 |
| LCS | G ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C24 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
356 conjugacy classes of subgroups; only the 196 normal subgroups are shown.
This group has 356 conjugacy classes of subgroups — too many to draw. Only its 196 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 18 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 4 generators on 18 points:
(1,2);(4,6)(7,8,10,9)(12,15)(13,17);(7,9,10,8)(11,12)(13,16)(14,15)(17,18);(3,4)(5,6)(11,13,14,17)(12,16,15,18)56 conjugacy classes — view the full character table.
| maximal subgroup of | #8154, #8562, #9082, … |
| maximal normal subgroup of | #8154, #8562, #9082, … |
| maximal quotient of | C2×#1434, C2×#1436, C4×#387, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(128, 1020);