Properties

Label 11520.ec.180.a1
Order $ 2^{6} $
Index $ 2^{2} \cdot 3^{2} \cdot 5 $
Normal Yes

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Subgroup ($H$) information

Description:$D_4\times C_2^3$
Order: \(64\)\(\medspace = 2^{6} \)
Index: \(180\)\(\medspace = 2^{2} \cdot 3^{2} \cdot 5 \)
Exponent: \(4\)\(\medspace = 2^{2} \)
Generators: $\langle(10,14,11,15), (8,9), (10,11)(14,15), (14,15), (6,7)(8,9), (8,9)(12,13)\rangle$ Copy content Toggle raw display
Nilpotency class: $2$
Derived length: $2$

The subgroup is the Fitting subgroup (hence characteristic, normal, nilpotent, solvable, supersolvable, and monomial), a semidirect factor, nonabelian, a $p$-group (hence elementary and hyperelementary), metabelian, and rational.

Ambient group ($G$) information

Description: $C_2^5:C_6\times A_5$
Order: \(11520\)\(\medspace = 2^{8} \cdot 3^{2} \cdot 5 \)
Exponent: \(60\)\(\medspace = 2^{2} \cdot 3 \cdot 5 \)
Derived length:$2$

The ambient group is nonabelian and nonsolvable.

Quotient group ($Q$) structure

Description: $\GL(2,4)$
Order: \(180\)\(\medspace = 2^{2} \cdot 3^{2} \cdot 5 \)
Exponent: \(30\)\(\medspace = 2 \cdot 3 \cdot 5 \)
Automorphism Group: $C_2\times S_5$, of order \(240\)\(\medspace = 2^{4} \cdot 3 \cdot 5 \)
Outer Automorphisms: $C_2^2$, of order \(4\)\(\medspace = 2^{2} \)
Nilpotency class: $-1$
Derived length: $1$

The quotient is nonabelian, an A-group, and nonsolvable.

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)$$S_5\times C_2\wr C_2^2\times S_4$
$\operatorname{Aut}(H)$ $C_2^5.C_2^7:\GL(3,2)$, of order \(688128\)\(\medspace = 2^{15} \cdot 3 \cdot 7 \)
$W$$C_2\times C_6$, of order \(12\)\(\medspace = 2^{2} \cdot 3 \)

Related subgroups

Centralizer:$C_2^4\times A_5$
Normalizer:$C_2^5:C_6\times A_5$
Complements:$\GL(2,4)$
Minimal over-subgroups:$C_{20}:C_2^4$$C_2^5:C_6$$C_{12}:C_2^4$$C_2^5:C_6$$D_4\times C_2^4$
Maximal under-subgroups:$C_2^5$$C_2^3\times C_4$$C_2^2\times D_4$$C_2^2\times D_4$$C_2^2\times D_4$$C_2^2\times D_4$$C_2^2\times D_4$

Other information

Number of conjugacy classes in this autjugacy class$1$
Möbius function not computed
Projective image$C_2^4:\GL(2,4)$