Properties

Label 980.15.1.a1.a1
Order $ 2^{2} \cdot 5 \cdot 7^{2} $
Index $ 1 $
Normal Yes

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Subgroup ($H$) information

Description:$C_{35}:C_{28}$
Order: \(980\)\(\medspace = 2^{2} \cdot 5 \cdot 7^{2} \)
Index: $1$
Exponent: \(140\)\(\medspace = 2^{2} \cdot 5 \cdot 7 \)
Generators: $a^{7}, a^{14}, b^{21}, a^{4}, b^{5}$ Copy content Toggle raw display
Derived length: $2$

The subgroup is the radical (hence characteristic, normal, and solvable), a direct factor, nonabelian, a Hall subgroup, metacyclic (hence supersolvable, monomial, and metabelian), and an A-group.

Ambient group ($G$) information

Description: $C_{35}:C_{28}$
Order: \(980\)\(\medspace = 2^{2} \cdot 5 \cdot 7^{2} \)
Exponent: \(140\)\(\medspace = 2^{2} \cdot 5 \cdot 7 \)
Derived length:$2$

The ambient group is nonabelian, metacyclic (hence solvable, supersolvable, monomial, and metabelian), and an A-group.

Quotient group ($Q$) structure

Description: $C_1$
Order: $1$
Exponent: $1$
Automorphism Group: $C_1$, of order $1$
Outer Automorphisms: $C_1$, of order $1$
Derived length: $0$

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

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)$$C_2\times C_6\times F_5\times F_7$
$\operatorname{Aut}(H)$ $C_2\times C_6\times F_5\times F_7$
$W$$D_{35}$, of order \(70\)\(\medspace = 2 \cdot 5 \cdot 7 \)

Related subgroups

Centralizer:$C_{14}$
Normalizer:$C_{35}:C_{28}$
Complements:$C_1$
Maximal under-subgroups:$C_7\times C_{70}$$C_7:C_{28}$$C_{35}:C_4$$C_5:C_{28}$

Other information

Möbius function$1$
Projective image$D_{35}$