Finite Group DatabasebetaFinite Group Databasebeta| order | 128 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #2403 |
| automorphism | Aut(G) order 8192 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, commutator, Frattini, socle, cosocle | C23 | C24 |
| prime radical | C2×#121 | C2 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
316 conjugacy classes of subgroups; only the 112 normal subgroups are shown.
This group has 316 conjugacy classes of subgroups — too many to draw. Only its 112 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 16 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 4 generators on 16 points:
(2,3)(5,6,7,8)(10,13)(11,15);(1,2,4,3)(5,6,7,8)(9,10)(11,14)(12,13)(15,16);(5,6)(7,8)(9,10)(11,14)(12,13)(15,16);(1,3,4,2)(9,11,12,15)(10,14,13,16)Polycyclic presentation:
2^7|a^2=g,b^2=ef,d^2=e,b^a=be,c^a=cf,d^a=de,c^b=cg38 conjugacy classes — view the full character table.
| maximal subgroup of | #26720, #26724, #26729, … |
| maximal normal subgroup of | #26720, #26724, #26729, … |
| maximal quotient of | #13876, #13918, #13994, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(128, 1223);