Properties

Label 384.17844.128.a1
Order $ 3 $
Index $ 2^{7} $
Normal Yes

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Subgroup ($H$) information

Description:$C_3$
Order: \(3\)
Index: \(128\)\(\medspace = 2^{7} \)
Exponent: \(3\)
Generators: $d^{16}$ Copy content Toggle raw display
Nilpotency class: $1$
Derived length: $1$

The subgroup is characteristic (hence normal), a direct factor, cyclic (hence abelian, nilpotent, solvable, supersolvable, monomial, elementary, hyperelementary, metacyclic, metabelian, a Z-group, and an A-group), central, a $3$-Sylow subgroup (hence a Hall subgroup), a $p$-group, and simple.

Ambient group ($G$) information

Description: $C_2^3\times C_{48}$
Order: \(384\)\(\medspace = 2^{7} \cdot 3 \)
Exponent: \(48\)\(\medspace = 2^{4} \cdot 3 \)
Nilpotency class:$1$
Derived length:$1$

The ambient group is abelian (hence nilpotent, solvable, supersolvable, monomial, metabelian, and an A-group) and elementary for $p = 2$ (hence hyperelementary).

Quotient group ($Q$) structure

Description: $C_2^3\times C_{16}$
Order: \(128\)\(\medspace = 2^{7} \)
Exponent: \(16\)\(\medspace = 2^{4} \)
Automorphism Group: $C_4.C_2^7:\GL(3,2)$, of order \(86016\)\(\medspace = 2^{12} \cdot 3 \cdot 7 \)
Outer Automorphisms: $C_4.C_2^7:\GL(3,2)$, of order \(86016\)\(\medspace = 2^{12} \cdot 3 \cdot 7 \)
Nilpotency class: $1$
Derived length: $1$

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

Automorphism information

Since the subgroup $H$ is characteristic, the automorphism group $\operatorname{Aut}(G)$ of the ambient group acts on $H$, yielding a homomorphism $\operatorname{res} : \operatorname{Aut}(G) \to \operatorname{Aut}(H)$. The image of $\operatorname{res}$ on the inner automorphism group $\operatorname{Inn}(G)$ is the Weyl group $W = G / Z_G(H)$.

$\operatorname{Aut}(G)$$C_2^4.C_2^6.\PSL(2,7)$
$\operatorname{Aut}(H)$ $C_2$, of order \(2\)
$\operatorname{res}(\operatorname{Aut}(G))$$C_2$, of order \(2\)
$\card{\operatorname{ker}(\operatorname{res})}$\(86016\)\(\medspace = 2^{12} \cdot 3 \cdot 7 \)
$W$$C_1$, of order $1$

Related subgroups

Centralizer:$C_2^3\times C_{48}$
Normalizer:$C_2^3\times C_{48}$
Complements:$C_2^3\times C_{16}$
Minimal over-subgroups:$C_6$$C_6$
Maximal under-subgroups:$C_1$

Other information

Number of conjugacy classes in this autjugacy class$1$
Möbius function$0$
Projective image$C_2^3\times C_{16}$