Properties

Label 7T7
Degree $7$
Order $5040$
Cyclic no
Abelian no
Solvable no
Primitive yes
$p$-group no
Group: $S_7$

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Show commands: Magma

magma: G := TransitiveGroup(7, 7);
 

Group action invariants

Degree $n$:  $7$
magma: t, n := TransitiveGroupIdentification(G); n;
 
Transitive number $t$:  $7$
magma: t, n := TransitiveGroupIdentification(G); t;
 
Group:  $S_7$
CHM label:   $S7$
Parity:  $-1$
magma: IsEven(G);
 
Primitive:  yes
magma: IsPrimitive(G);
 
magma: NilpotencyClass(G);
 
$\card{\Aut(F/K)}$:  $1$
magma: Order(Centralizer(SymmetricGroup(n), G));
 
Generators:  (1,2,3,4,5,6,7), (1,2)
magma: Generators(G);
 

Low degree resolvents

|G/N|Galois groups for stem field(s)
$2$:  $C_2$

Resolvents shown for degrees $\leq 47$

Subfields

Prime degree - none

Low degree siblings

14T46, 21T38, 30T565, 35T31, 42T411, 42T412, 42T413, 42T418

Siblings are shown with degree $\leq 47$

A number field with this Galois group has no arithmetically equivalent fields.

Conjugacy classes

LabelCycle TypeSizeOrderRepresentative
$1^{7}$ $1$ $1$ $()$
$2,1^{5}$ $21$ $2$ $(3,4)$
$5,1^{2}$ $504$ $5$ $(1,5,7,2,6)$
$5,2$ $504$ $10$ $(1,2,5,6,7)(3,4)$
$2^{2},1^{3}$ $105$ $2$ $(1,7)(3,4)$
$4,2,1$ $630$ $4$ $(1,3,7,4)(2,6)$
$4,1^{3}$ $210$ $4$ $(1,3,7,4)$
$2^{3},1$ $105$ $2$ $(1,7)(2,5)(3,4)$
$3,1^{4}$ $70$ $3$ $(2,6,5)$
$3,2^{2}$ $210$ $6$ $(1,7)(2,5,6)(3,4)$
$4,3$ $420$ $12$ $(1,3,7,4)(2,5,6)$
$3^{2},1$ $280$ $3$ $(1,6,3)(2,5,4)$
$6,1$ $840$ $6$ $(1,4,6,2,3,5)$
$7$ $720$ $7$ $(1,7,3,2,4,5,6)$
$3,2,1^{2}$ $420$ $6$ $(1,6,4)(5,7)$

magma: ConjugacyClasses(G);
 

Group invariants

Order:  $5040=2^{4} \cdot 3^{2} \cdot 5 \cdot 7$
magma: Order(G);
 
Cyclic:  no
magma: IsCyclic(G);
 
Abelian:  no
magma: IsAbelian(G);
 
Solvable:  no
magma: IsSolvable(G);
 
Nilpotency class:   not nilpotent
Label:  5040.w
magma: IdentifyGroup(G);
 
Character table:

Size
2 P
3 P
5 P
7 P
Type

magma: CharacterTable(G);