Properties

Label 1080.172.6.b1
Order $ 2^{2} \cdot 3^{2} \cdot 5 $
Index $ 2 \cdot 3 $
Normal Yes

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Subgroup ($H$) information

Description:$C_3\times C_{60}$
Order: \(180\)\(\medspace = 2^{2} \cdot 3^{2} \cdot 5 \)
Index: \(6\)\(\medspace = 2 \cdot 3 \)
Exponent: \(60\)\(\medspace = 2^{2} \cdot 3 \cdot 5 \)
Generators: $b^{3}, c^{10}, c^{3}, b^{4}, b^{6}$ Copy content Toggle raw display
Nilpotency class: $1$
Derived length: $1$

The subgroup is normal, a semidirect factor, abelian (hence nilpotent, solvable, supersolvable, monomial, metabelian, and an A-group), elementary for $p = 3$ (hence hyperelementary), and metacyclic.

Ambient group ($G$) information

Description: $C_{30}.C_6^2$
Order: \(1080\)\(\medspace = 2^{3} \cdot 3^{3} \cdot 5 \)
Exponent: \(60\)\(\medspace = 2^{2} \cdot 3 \cdot 5 \)
Derived length:$2$

The ambient group is nonabelian, supersolvable (hence solvable and monomial), and metabelian.

Quotient group ($Q$) structure

Description: $C_6$
Order: \(6\)\(\medspace = 2 \cdot 3 \)
Exponent: \(6\)\(\medspace = 2 \cdot 3 \)
Automorphism Group: $C_2$, of order \(2\)
Outer Automorphisms: $C_2$, of order \(2\)
Nilpotency class: $1$
Derived length: $1$

The quotient is cyclic (hence abelian, nilpotent, solvable, supersolvable, monomial, elementary ($p = 2,3$), hyperelementary, metacyclic, metabelian, a Z-group, and an A-group).

Automorphism information

While the subgroup $H$ is not characteristic, the stabilizer $S$ of $H$ in the automorphism group $\operatorname{Aut}(G)$ of the ambient group acts on $H$, yielding a homomorphism $\operatorname{res} : S \to \operatorname{Aut}(H)$. The image of $\operatorname{res}$ on the inner automorphisms $\operatorname{Inn}(G) \cap S$ is the Weyl group $W = N_G(H) / Z_G(H)$.

$\operatorname{Aut}(G)$$C_2^2\times \AGL(2,3)\times F_5$
$\operatorname{Aut}(H)$ $C_2\times C_4\times \GL(2,3)$, of order \(384\)\(\medspace = 2^{7} \cdot 3 \)
$\operatorname{res}(S)$$C_{12}:C_2^3$, of order \(96\)\(\medspace = 2^{5} \cdot 3 \)
$\card{\operatorname{ker}(\operatorname{res})}$\(90\)\(\medspace = 2 \cdot 3^{2} \cdot 5 \)
$W$$C_6$, of order \(6\)\(\medspace = 2 \cdot 3 \)

Related subgroups

Centralizer:$C_3\times C_{60}$
Normalizer:$C_{30}.C_6^2$
Complements:$C_6$
Minimal over-subgroups:$C_{20}\times \He_3$$C_{60}:C_6$
Maximal under-subgroups:$C_3\times C_{30}$$C_{60}$$C_{60}$$C_3\times C_{12}$

Other information

Number of subgroups in this autjugacy class$4$
Number of conjugacy classes in this autjugacy class$4$
Möbius function$1$
Projective image$C_3^2\times D_5$