Properties

Label 226920.b.3782.b1.a1
Order $ 2^{2} \cdot 3 \cdot 5 $
Index $ 2 \cdot 31 \cdot 61 $
Normal No

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Subgroup ($H$) information

Description:$C_{60}$
Order: \(60\)\(\medspace = 2^{2} \cdot 3 \cdot 5 \)
Index: \(3782\)\(\medspace = 2 \cdot 31 \cdot 61 \)
Exponent: \(60\)\(\medspace = 2^{2} \cdot 3 \cdot 5 \)
Generators: $\left[ \left(\begin{array}{rr} 7 & 14 \\ 0 & 17 \end{array}\right) \right], \left[ \left(\begin{array}{rr} 4 & 21 \\ 0 & 19 \end{array}\right) \right], \left[ \left(\begin{array}{rr} 47 & 4 \\ 0 & 15 \end{array}\right) \right], \left[ \left(\begin{array}{rr} 30 & 40 \\ 0 & 15 \end{array}\right) \right]$ Copy content Toggle raw display
Nilpotency class: $1$
Derived length: $1$

The subgroup is cyclic (hence abelian, nilpotent, solvable, supersolvable, monomial, elementary ($p = 2,3,5$), hyperelementary, metacyclic, metabelian, a Z-group, and an A-group).

Ambient group ($G$) information

Description: $\PGL(2,61)$
Order: \(226920\)\(\medspace = 2^{3} \cdot 3 \cdot 5 \cdot 31 \cdot 61 \)
Exponent: \(113460\)\(\medspace = 2^{2} \cdot 3 \cdot 5 \cdot 31 \cdot 61 \)
Derived length:$1$

The ambient group is nonabelian, almost simple, and nonsolvable.

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)$$\PGL(2,61)$, of order \(226920\)\(\medspace = 2^{3} \cdot 3 \cdot 5 \cdot 31 \cdot 61 \)
$\operatorname{Aut}(H)$ $C_2^2\times C_4$, of order \(16\)\(\medspace = 2^{4} \)
$W$$C_2$, of order \(2\)

Related subgroups

Centralizer:$C_{60}$
Normalizer:$D_{60}$
Normal closure:$\PGL(2,61)$
Core:$C_1$
Minimal over-subgroups:$F_{61}$$D_{60}$
Maximal under-subgroups:$C_{30}$$C_{20}$$C_{12}$

Other information

Number of subgroups in this conjugacy class$1891$
Möbius function$2$
Projective image$\PGL(2,61)$