Properties

Label 430.4.43.a1.a1
Order $ 2 \cdot 5 $
Index $ 43 $
Normal Yes

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Subgroup ($H$) information

Description:$C_{10}$
Order: \(10\)\(\medspace = 2 \cdot 5 \)
Index: \(43\)
Exponent: \(10\)\(\medspace = 2 \cdot 5 \)
Generators: $a^{215}, a^{172}$ Copy content Toggle raw display
Nilpotency class: $1$
Derived length: $1$

The subgroup is characteristic (hence normal), maximal, a direct factor, cyclic (hence abelian, nilpotent, solvable, supersolvable, monomial, elementary ($p = 2,5$), hyperelementary, metacyclic, metabelian, a Z-group, and an A-group), central, and a Hall subgroup.

Ambient group ($G$) information

Description: $C_{430}$
Order: \(430\)\(\medspace = 2 \cdot 5 \cdot 43 \)
Exponent: \(430\)\(\medspace = 2 \cdot 5 \cdot 43 \)
Nilpotency class:$1$
Derived length:$1$

The ambient group is cyclic (hence abelian, nilpotent, solvable, supersolvable, monomial, elementary ($p = 2,5,43$), hyperelementary, metacyclic, metabelian, a Z-group, and an A-group).

Quotient group ($Q$) structure

Description: $C_{43}$
Order: \(43\)
Exponent: \(43\)
Automorphism Group: $C_{42}$, of order \(42\)\(\medspace = 2 \cdot 3 \cdot 7 \)
Outer Automorphisms: $C_{42}$, of order \(42\)\(\medspace = 2 \cdot 3 \cdot 7 \)
Nilpotency class: $1$
Derived length: $1$

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

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\times C_{84}$, of order \(168\)\(\medspace = 2^{3} \cdot 3 \cdot 7 \)
$\operatorname{Aut}(H)$ $C_4$, of order \(4\)\(\medspace = 2^{2} \)
$\operatorname{res}(\operatorname{Aut}(G))$$C_4$, of order \(4\)\(\medspace = 2^{2} \)
$\card{\operatorname{ker}(\operatorname{res})}$\(42\)\(\medspace = 2 \cdot 3 \cdot 7 \)
$W$$C_1$, of order $1$

Related subgroups

Centralizer:$C_{430}$
Normalizer:$C_{430}$
Complements:$C_{43}$
Minimal over-subgroups:$C_{430}$
Maximal under-subgroups:$C_5$$C_2$

Other information

Möbius function$-1$
Projective image$C_{43}$