Finite Group DatabasebetaFinite Group Databasebeta| order | 128 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #3057 |
| automorphism | Aut(G) order 1024 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | C22×D4 |
| commutator, Frattini, cosocle | C2×C4 | C24 |
| prime radical | #121 | C22 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ #117 ◁ G | |
| LECS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
175 conjugacy classes of subgroups; only the 88 normal subgroups are shown.
This group has 175 conjugacy classes of subgroups — too many to draw. Only its 88 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 24 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 4 generators on 24 points:
(1,2)(3,6)(4,5)(7,8)(11,17)(12,20)(14,21)(16,22)(18,23)(19,24);(2,5)(6,8)(9,10)(11,18)(12,16)(13,15)(14,19)(17,23)(20,22)(21,24);(9,11,12,17,13,19,20,24)(10,14,16,21,15,18,22,23);(1,3,4,7)(2,6,5,8)(10,15)(14,18)(16,22)(21,23)Polycyclic presentation:
2^7|c^2=f,d^2=e,f^2=g,b^a=be,c^a=cf,f^a=fg,c^b=cg,d^b=dg32 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#3178, #60685, #60694, … |
| maximal normal subgroup of | C2×#3178, #60685, #60694, … |
| maximal quotient of | #20822, #21283, #21285, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(128, 1910);