Finite Group DatabasebetaFinite Group Databasebeta| order | 128 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of D42 |
| automorphism | Aut(G) order 32768 |
| homology | Abelianization (H1) = C23×C4 · Schur multiplier (H2) = C26 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, Frattini, socle, cosocle | C23 | C24 |
| commutator | C22 | C23×C4 |
| prime radical | C2×#127 | C2 |
| LCS | G ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
416 conjugacy classes of subgroups.
| minimal degree | μ(G) = 12 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 4 generators on 12 points:
(1,2,4,3)(6,8)(9,10,12,11);(2,3)(9,11,12,10);(5,6,7,8);(1,3,4,2)Polycyclic presentation:
2^7|a^2=g,b^2=eg,c^2=f,d^2=e,b^a=be,c^a=cf,d^b=de50 conjugacy classes — view the full character table.
| maximal subgroup of | #8920, #8921, #8924, … |
| maximal normal subgroup of | #8920, #8921, #8924, … |
| maximal quotient of | C4⋊C42, #13820, #13824, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(128, 1098);