Finite Group DatabasebetaFinite Group Databasebeta| order | 128 |
| nilpotency class | 3 |
| isoclinism | isoclinic class of #3057 |
| automorphism | Aut(G) order 8192 |
| homology | Abelianization (H1) = C24 · Schur multiplier (H2) = C25 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | C22×D4 |
| commutator, Frattini, cosocle | C2×C4 | C24 |
| prime radical | C2×#41 | C22 |
| LCS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C2×#41 ◁ G | |
| LECS | G ▷ C2×C4 ▷ C2 ▷ C1 | |
230 conjugacy classes of subgroups.
| minimal degree | μ(G) = 36 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 4 generators on 36 points:
(1,2)(3,4)(5,6,10,14)(7,15,19,29)(8,12,20,26)(9,22,16,13)(11,23,25,18)(17,28,31,36)(21,33,30,27)(24,34,35,32);(5,7,16,23,10,19,9,18)(6,11,22,29,14,25,13,15)(8,17,30,34,20,31,21,32)(12,24,33,36,26,35,27,28);(2,4)(5,8)(6,12)(7,17)(9,21)(10,20)(11,24)(13,27)(14,26)(15,28)(16,30)(18,32)(19,31)(22,33)(23,34)(25,35)(29,36);(8,20)(12,26)(17,31)(21,30)(24,35)(27,33)(28,36)(32,34)Polycyclic presentation:
2^7|a^2=g,b^2=eg,e^2=g,b^a=be,c^a=cf,e^a=eg,d^c=dg32 conjugacy classes — view the full character table.
| maximal subgroup of | #11869, #11871, #13075, … |
| maximal normal subgroup of | #11869, #11871, #13075, … |
| maximal quotient of | #19188, #19193, #19199, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(128, 1791);