Properties

Label 12450.a.3.a1.a1
Order $ 2 \cdot 5^{2} \cdot 83 $
Index $ 3 $
Normal Yes

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Subgroup ($H$) information

Description:$D_{25}\times C_{83}$
Order: \(4150\)\(\medspace = 2 \cdot 5^{2} \cdot 83 \)
Index: \(3\)
Exponent: \(4150\)\(\medspace = 2 \cdot 5^{2} \cdot 83 \)
Generators: $a, b^{75}, b^{2490}, b^{498}$ Copy content Toggle raw display
Derived length: $2$

The subgroup is characteristic (hence normal), maximal, a direct factor, nonabelian, a Hall subgroup, a Z-group (hence solvable, supersolvable, monomial, metacyclic, metabelian, and an A-group), and hyperelementary for $p = 2$.

Ambient group ($G$) information

Description: $D_{25}\times C_{249}$
Order: \(12450\)\(\medspace = 2 \cdot 3 \cdot 5^{2} \cdot 83 \)
Exponent: \(12450\)\(\medspace = 2 \cdot 3 \cdot 5^{2} \cdot 83 \)
Derived length:$2$

The ambient group is nonabelian, a Z-group (hence solvable, supersolvable, monomial, metacyclic, metabelian, and an A-group), and hyperelementary for $p = 2$.

Quotient group ($Q$) structure

Description: $C_3$
Order: \(3\)
Exponent: \(3\)
Automorphism Group: $C_2$, of order \(2\)
Outer Automorphisms: $C_2$, of order \(2\)
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_{82}\times D_{25}.C_{10}$, of order \(82000\)\(\medspace = 2^{4} \cdot 5^{3} \cdot 41 \)
$\operatorname{Aut}(H)$ $C_{82}\times D_{25}.C_{10}$, of order \(41000\)\(\medspace = 2^{3} \cdot 5^{3} \cdot 41 \)
$W$$D_{25}$, of order \(50\)\(\medspace = 2 \cdot 5^{2} \)

Related subgroups

Centralizer:$C_{249}$
Normalizer:$D_{25}\times C_{249}$
Complements:$C_3$
Minimal over-subgroups:$D_{25}\times C_{249}$
Maximal under-subgroups:$C_{2075}$$D_5\times C_{83}$$D_{25}$

Other information

Möbius function$-1$
Projective image$C_3\times D_{25}$