↑

Properties

Label 17T4
Order \(136\)
n \(17\)
Cyclic No
Abelian No
Solvable Yes
Primitive Yes
$p$-group No
Group: $C_{17}:C_{8}$

Related objects

Learn more about

Group action invariants

Degree $n$:  $17$
Transitive number $t$:  $4$
Group:  $C_{17}:C_{8}$
Parity:  $1$
Primitive:  Yes
Nilpotency class:  $-1$ (not nilpotent)
Generators:  (2,10,14,16,17,9,5,3)(4,11,6,12,15,8,13,7), (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17)
$|\Aut(F/K)|$:  $1$

Low degree resolvents

|G/N|Galois groups for stem field(s)
2:  $C_2$
4:  $C_4$
8:  $C_8$

Resolvents shown for degrees $\leq 47$

Subfields

Prime degree - none

Low degree siblings

There are no siblings with degree $\leq 47$
A number field with this Galois group has no arithmetically equivalent fields.

Conjugacy classes

Cycle TypeSizeOrderRepresentative
$ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 $ $1$ $1$ $()$
$ 8, 8, 1 $ $17$ $8$ $( 2, 3, 5, 9,17,16,14,10)( 4, 7,13, 8,15,12, 6,11)$
$ 4, 4, 4, 4, 1 $ $17$ $4$ $( 2, 5,17,14)( 3, 9,16,10)( 4,13,15, 6)( 7, 8,12,11)$
$ 8, 8, 1 $ $17$ $8$ $( 2, 9,14, 3,17,10, 5,16)( 4, 8, 6, 7,15,11,13,12)$
$ 8, 8, 1 $ $17$ $8$ $( 2,10,14,16,17, 9, 5, 3)( 4,11, 6,12,15, 8,13, 7)$
$ 4, 4, 4, 4, 1 $ $17$ $4$ $( 2,14,17, 5)( 3,10,16, 9)( 4, 6,15,13)( 7,11,12, 8)$
$ 8, 8, 1 $ $17$ $8$ $( 2,16, 5,10,17, 3,14, 9)( 4,12,13,11,15, 7, 6, 8)$
$ 2, 2, 2, 2, 2, 2, 2, 2, 1 $ $17$ $2$ $( 2,17)( 3,16)( 4,15)( 5,14)( 6,13)( 7,12)( 8,11)( 9,10)$
$ 17 $ $8$ $17$ $( 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15,16,17)$
$ 17 $ $8$ $17$ $( 1, 4, 7,10,13,16, 2, 5, 8,11,14,17, 3, 6, 9,12,15)$

Group invariants

Order:  $136=2^{3} \cdot 17$
Cyclic:  No
Abelian:  No
Solvable:  Yes
GAP id:  [136, 12]
Character table:    
      2  3   3  3   3   3  3   3  3   .   .
     17  1   .  .   .   .  .   .  .   1   1

        1a  8a 4a  8b  8c 4b  8d 2a 17a 17b
     2P 1a  4a 2a  4b  4b 2a  4a 1a 17a 17b
     3P 1a  8b 4b  8a  8d 4a  8c 2a 17b 17a
     5P 1a  8d 4a  8c  8b 4b  8a 2a 17b 17a
     7P 1a  8c 4b  8d  8a 4a  8b 2a 17b 17a
    11P 1a  8b 4b  8a  8d 4a  8c 2a 17b 17a
    13P 1a  8d 4a  8c  8b 4b  8a 2a 17a 17b
    17P 1a  8a 4a  8b  8c 4b  8d 2a  1a  1a

X.1      1   1  1   1   1  1   1  1   1   1
X.2      1  -1  1  -1  -1  1  -1  1   1   1
X.3      1   A -1  -A  -A -1   A  1   1   1
X.4      1  -A -1   A   A -1  -A  1   1   1
X.5      1   B -A -/B  /B  A  -B -1   1   1
X.6      1 -/B  A   B  -B -A  /B -1   1   1
X.7      1  /B  A  -B   B -A -/B -1   1   1
X.8      1  -B -A  /B -/B  A   B -1   1   1
X.9      8   .  .   .   .  .   .  .   C  *C
X.10     8   .  .   .   .  .   .  .  *C   C

A = -E(4)
  = -Sqrt(-1) = -i
B = -E(8)
C = E(17)^3+E(17)^5+E(17)^6+E(17)^7+E(17)^10+E(17)^11+E(17)^12+E(17)^14
  = (-1-Sqrt(17))/2 = -1-b17