Finite Group DatabasebetaFinite Group Databasebeta| order | 128 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #465 |
| automorphism | Aut(G) order 8192 |
| homology | Abelianization (H1) = C22×C4 · Schur multiplier (H2) = C2×C4 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle, prime radical | C23 | C2×D4 |
| commutator | C2×C4 | C22×C4 |
| Frattini, cosocle | C22×C4 | C23 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ C2×C42 ◁ G | |
| LECS | G ▷ C22×C4 ▷ C2 ▷ C1 | |
126 conjugacy classes of subgroups.
| minimal degree | μ(G) = 28 |
| transitive degree | μt(G) = 128 |
A minimal faithful permutation representation — 3 generators on 28 points:
(1,2,3,4)(5,6)(7,11)(8,9)(10,12)(13,14)(15,21)(16,25)(17,19)(18,23)(20,22)(24,27)(26,28);(2,4)(6,9)(10,11)(13,15,22,28,17,24,16,23)(14,18,25,27,19,26,20,21);(5,7,8,12)(6,10,9,11)(14,19)(18,26)(20,25)(21,27)Polycyclic presentation:
2^7|a^2=f,b^2=def,c^2=eg,d^2=g,b^a=bd,c^a=ce,d^a=dg44 conjugacy classes — view the full character table.
| Frattini subgroup of | #94547 |
| maximal subgroup of | #7135, #7359, #8529, … |
| maximal normal subgroup of | #7135, #7359, #8529, … |
| maximal quotient of | #9871, #9875, #9886, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(128, 723);