Finite Group DatabasebetaFinite Group Databasebeta| order | 144 |
| isoclinism | isoclinic class of Dic18 |
| automorphism | Aut(G) = C2×D4×AGL(1,ℤ/9) (order 864) · Inn(G) = C2×D9 · Out(G) = C23×C3 |
| homology | Abelianization (H1) = C23 · Schur multiplier (H2) = C22 |
No aliases for this group.
| Fitting | C2×C4×C9 ⋊ C2 |
| Sylow | C9 ⋊ #41 |
| subgroup | G/H | |
|---|---|---|
| center | C4 | C2×D9 |
| commutator, cosocle | C2×C9 | C23 |
| Frattini, socle | C2×C3 | C22×D3 |
| Fitting | C2×C4×C9 | C2 |
| hypercenter | C2×C4 | D9 |
| hypocenter | C9 | #41 |
| LCS | G ▷ C2×C9 ▷ C9 | |
| UCS | C1 ◁ C4 ◁ C2×C4 | |
60 conjugacy classes of subgroups.
| minimal degree | μ(G) = 17 |
| transitive degree | μt(G) = 72 |
A minimal faithful permutation representation — 3 generators on 17 points:
(1,6,8,7,2,4,3,9,5)(11,15)(14,17);(10,12,13,16)(11,14,15,17);(2,4)(3,7)(5,6)(8,9)(10,11)(12,14)(13,15)(16,17)Polycyclic presentation:
2^4,3^2|b^2=d,e^3=f^2,c^a=cd,e^a=e^2f,f^a=f^242 conjugacy classes — view the full character table.
| maximal subgroup of | #63364, #63384, #63464, … |
| maximal normal subgroup of | #63364, #63384, #63464, … |
| maximal quotient of | C4×Dic18, #63432, #63434, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(144, 40);