Finite Group DatabasebetaFinite Group Databasebeta| order | 128 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #2403 |
| automorphism | Aut(G) = C212 (order 4096) · Inn(G) = C24 · Out(G) = C28 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C23 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, commutator, Frattini, socle, cosocle | C23 | C24 |
| prime radical | C22×D4 | C22 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
234 conjugacy classes of subgroups; only the 92 normal subgroups are shown.
This group has 234 conjugacy classes of subgroups — too many to draw. Only its 92 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:
(1,2,5,4)(3,7,8,6)(9,10)(11,15)(12,16)(13,14)(17,18)(19,23)(20,22)(21,24);(3,8)(6,7)(10,14)(11,16)(17,18,20,22)(19,21,24,23);(1,3)(2,6)(4,7)(5,8)(9,11)(10,12)(13,16)(14,15)(17,18)(19,21)(20,22)(23,24);(1,4,5,2)(3,7,8,6)(9,12)(10,11)(13,15)(14,16)(17,19,20,24)(18,21,22,23)Polycyclic presentation:
2^7|a^2=eg,b^2=fg,d^2=ef,b^a=be,c^a=cf,d^a=de,c^b=cg38 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#2578, #34849, #34863, … |
| maximal normal subgroup of | C2×#2578, #34849, #34863, … |
| maximal quotient of | #13919, #13947, #13988, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(128, 1310);