Finite Group DatabasebetaFinite Group Databasebeta| order | 128 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #447 |
| automorphism | Aut(G) order 4096 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C2×D4 |
| commutator | C2×C4 | C22×C4 |
| Frattini, cosocle | C22×C4 | C23 |
| prime radical | C24 | D4 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C23×C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
180 conjugacy classes of subgroups.
| minimal degree | μ(G) = 24 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 3 generators on 24 points:
(2,4)(5,6)(7,8)(9,10,13,17,14,18,12,16)(11,19,20,15,22,23,21,24);(1,2,3,4)(9,11)(10,15)(12,20)(13,21)(14,22)(16,23)(17,19)(18,24);(6,8)(9,12,14,13)(10,16,18,17)(11,20,22,21)(15,23,24,19)Polycyclic presentation:
2^7|a^2=f,b^2=df,c^2=g,d^2=g,f^2=g,b^a=bd,c^a=ce,d^b=dg,f^b=fg38 conjugacy classes — view the full character table.
| maximal subgroup of | #8488, C2×#1873, #20908, … |
| maximal normal subgroup of | #8488, C2×#1873, #20908, … |
| maximal quotient of | #8938, #8941, #8974, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(128, 605);