Finite Group DatabasebetaFinite Group Databasebeta| order | 128 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #1462 |
| automorphism | Aut(G) order 16384 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C25 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | C2×C22⋊C4 |
| commutator | C23 | C22×C4 |
| Frattini, cosocle | C22×C4 | C23 |
| prime radical | C24 | C2×C4 |
| LCS | G ▷ C23 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C23×C4 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
282 conjugacy classes of subgroups.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 32 |
A minimal faithful permutation representation — 3 generators on 20 points:
(1,2)(3,4)(5,6,8,12,9,11,17,19)(7,13,14,20,15,10,16,18);(5,7,9,15)(6,10,11,13)(8,16,17,14)(12,20,19,18);(2,4)Polycyclic presentation:
2^7|a^2=f,b^2=g,f^2=g,b^a=bd,c^a=ce,d^a=dg,f^b=fg32 conjugacy classes — view the full character table.
| Frattini subgroup of | #94520, #94521, #94525, … |
| maximal subgroup of | #7308, #7315, #7317, … |
| maximal normal subgroup of | #7308, #7315, #7317, … |
| maximal quotient of | #8299, #8303, #8306, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(128, 516);