Finite Group DatabasebetaFinite Group Databasebeta| order | 18688 |
| nilpotency class | 4 |
| automorphism | ? |
| homology | Abelianization (H1) = C22×C4×C73 · Schur multiplier (H2) = C22×C4 |
| direct product | C2×C73×#1339 |
| subgroup | G/H | |
|---|---|---|
| center, socle | C22×C73 | #327 |
| commutator | C2×C8 | C22×C4×C73 |
| Frattini, cosocle | C2×M16 | C23×C73 |
| prime radical | C2×#469×C73 | C2 |
| LCS | G ▷ C2×C8 ▷ C2×C4 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22×C73 ◁ C22×C4×C73 ◁ C22×M16×C73 ◁ G | |
496 conjugacy classes of subgroups.
| minimal degree | μ(G) = 91 |
| transitive degree | μt(G) = 2336 |
A minimal faithful permutation representation — 3 generators on 91 points:
(1,2)(19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91);(3,4)(5,13,16,8)(6,10)(7,12)(9,14,17,18)(11,15);(4,8)(5,14)(6,15)(9,11)(10,17)(12,13)(16,18)2920 conjugacy classes. The character table is too large to display.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(18688, 4671);