Finite Group DatabasebetaFinite Group Databasebeta| order | 128 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of D4×D8 |
| automorphism | Aut(G) order 1024 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | C22×D4 |
| commutator, Frattini, cosocle | C2×C4 | C24 |
| prime radical | #553 | C2 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C4×D4 ◁ G | |
| LECS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
177 conjugacy classes of subgroups; only the 88 normal subgroups are shown.
This group has 177 conjugacy classes of subgroups — too many to draw. Only its 88 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)(9,10,13,17)(11,14,19,23)(12,15,20,16)(18,21,24,22);(1,3)(2,6)(4,7)(5,8)(9,11,13,19)(10,14,17,23)(12,18,20,24)(15,21,16,22);(1,4,5,2)(3,7,8,6)(10,15)(12,20)(14,21)(16,17)(18,24)(22,23);(3,8)(6,7)Polycyclic presentation:
2^7|a^2=eg,b^2=g,c^2=e,f^2=g,b^a=be,c^a=cf,f^a=fg,d^b=de,f^c=fg35 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#3337, #61234, #61253, … |
| maximal normal subgroup of | C2×#3337, #61234, #61253, … |
| maximal quotient of | #22486, #22488, #22609, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(128, 2069);