Finite Group DatabasebetaFinite Group Databasebeta| order | 128 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #534 |
| automorphism | Aut(G) order 131072 |
| homology | Abelianization (H1) = C25 · Schur multiplier (H2) = C29 |
| direct product | C2×#536 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C23 | C24 |
| commutator, Frattini, cosocle | C22 | C25 |
| prime radical | C22×#41 | C2 |
| LCS | G ▷ C22 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C22 ▷ C1 | |
756 conjugacy classes of subgroups; only the 436 normal subgroups are shown.
This group has 756 conjugacy classes of subgroups — too many to draw. Only its 436 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 22 |
| transitive degree | μt(G) = 64 |
A minimal faithful permutation representation — 5 generators on 22 points:
(1,2);(4,6)(8,12)(9,15)(10,18)(20,22);(7,8,11,12)(9,16,15,13)(10,14,18,19)(17,22,21,20);(3,4)(5,6)(7,9,11,15)(8,13,12,16)(10,17,18,21)(14,20,19,22);(7,10)(8,14)(9,17)(11,18)(12,19)(13,20)(15,21)(16,22)44 conjugacy classes — view the full character table.
| Frattini subgroup of | #94419, #94421, #94422, … |
| maximal subgroup of | #8520, #8524, #10974, … |
| maximal normal subgroup of | #8520, #8524, #10974, … |
| maximal quotient of | C2×#2310, C2×#2311, C2×#2317, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(128, 2179);