Properties

Label 3840.fe.6.I
Order $ 2^{7} \cdot 5 $
Index $ 2 \cdot 3 $
Normal No

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Subgroup ($H$) information

Description:$(D_4\times D_{10}):C_4$
Order: \(640\)\(\medspace = 2^{7} \cdot 5 \)
Index: \(6\)\(\medspace = 2 \cdot 3 \)
Exponent: \(20\)\(\medspace = 2^{2} \cdot 5 \)
Generators: $\langle(6,7)(14,15), (1,5)(3,4)(12,13)(14,15), (6,7)(10,11)(12,13), (8,9)(12,13) \!\cdots\! \rangle$ Copy content Toggle raw display
Derived length: $2$

The subgroup is nonabelian, supersolvable (hence solvable and monomial), hyperelementary for $p = 2$, and metabelian.

Ambient group ($G$) information

Description: $C_2^3:F_5\times S_4$
Order: \(3840\)\(\medspace = 2^{8} \cdot 3 \cdot 5 \)
Exponent: \(60\)\(\medspace = 2^{2} \cdot 3 \cdot 5 \)
Derived length:$3$

The ambient group is nonabelian and solvable. Whether it is monomial has not been computed.

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_5\times A_4).C_2^6.C_2^5$
$\operatorname{Aut}(H)$ $C_5:(C_4\times C_2^7.C_2^5.C_2)$
$\card{\operatorname{res}(S)}$\(10240\)\(\medspace = 2^{11} \cdot 5 \)
$\card{\operatorname{ker}(\operatorname{res})}$\(2\)
$W$$C_2^3\times F_5$, of order \(160\)\(\medspace = 2^{5} \cdot 5 \)

Related subgroups

Centralizer:$C_2^3$
Normalizer:$D_{10}.D_4^2$
Normal closure:$C_2^3:F_5\times S_4$
Core:$C_2^2\times F_5$
Minimal over-subgroups:$D_{10}.D_4^2$
Maximal under-subgroups:$C_{20}:C_2^4$$C_2^4:F_5$$C_2^4:F_5$$C_2^4:F_5$$C_2^4:F_5$$D_{10}:C_4^2$$D_{10}.C_2^4$$(C_2\times D_{20}):C_4$$C_2^3.C_2^4$

Other information

Number of subgroups in this autjugacy class$6$
Number of conjugacy classes in this autjugacy class$2$
Möbius function not computed
Projective image$C_2\times F_5\times S_4$