Finite Group DatabasebetaFinite Group Databasebeta| order | 128 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of D4×D8 |
| automorphism | Aut(G) order 4096 |
| 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 | C2×D4 | D4 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C4×D4 ◁ G | |
| LECS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
170 conjugacy classes of subgroups.
| 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)(12,19)(13,21)(14,17)(16,18)(20,23)(22,24);(1,3)(2,6)(4,7)(5,8)(9,11,14,13)(10,15,17,21)(12,18,20,22)(16,23,24,19);(1,4,5,2)(3,7,8,6)(9,12,14,20)(10,16,17,24)(11,18,13,22)(15,23,21,19);(3,8)(6,7)(9,11,14,13)(10,15,17,21)(12,18,20,22)(16,23,24,19)Polycyclic presentation:
2^7|a^2=e,b^2=g,c^2=eg,d^2=g,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 | #12341, #12345, #12393, … |
| maximal normal subgroup of | #12341, #12345, #12393, … |
| maximal quotient of | #22490, #22614, #22658, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(128, 2074);