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Properties

Label 6.2.86879445589.1
Degree $6$
Signature $[2, 2]$
Discriminant $43^{3}\cdot 103^{3}$
Root discriminant $66.55$
Ramified primes $43, 103$
Class number $4$
Class group $[4]$
Galois group $\PGL(2,5)$ (as 6T14)

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Show commands for: Magma / SageMath / Pari/GP

magma: R<x> := PolynomialRing(Rationals()); K<a> := NumberField(R![164, -208, -51, 121, -17, -1, 1]);
 
sage: x = polygen(QQ); K.<a> = NumberField(x^6 - x^5 - 17*x^4 + 121*x^3 - 51*x^2 - 208*x + 164)
 
gp: K = bnfinit(x^6 - x^5 - 17*x^4 + 121*x^3 - 51*x^2 - 208*x + 164, 1)
 

Normalized defining polynomial

\( x^{6} - x^{5} - 17 x^{4} + 121 x^{3} - 51 x^{2} - 208 x + 164 \)

magma: DefiningPolynomial(K);
 
sage: K.defining_polynomial()
 
gp: K.pol
 

Invariants

Degree:  $6$
magma: Degree(K);
 
sage: K.degree()
 
gp: poldegree(K.pol)
 
Signature:  $[2, 2]$
magma: Signature(K);
 
sage: K.signature()
 
gp: K.sign
 
Discriminant:  \(86879445589=43^{3}\cdot 103^{3}\)
magma: Discriminant(Integers(K));
 
sage: K.disc()
 
gp: K.disc
 
Root discriminant:  $66.55$
magma: Abs(Discriminant(Integers(K)))^(1/Degree(K));
 
sage: (K.disc().abs())^(1./K.degree())
 
gp: abs(K.disc)^(1/poldegree(K.pol))
 
Ramified primes:  $43, 103$
magma: PrimeDivisors(Discriminant(Integers(K)));
 
sage: K.disc().support()
 
gp: factor(abs(K.disc))[,1]~
 
This field is not Galois over $\Q$.
This is not a CM field.

Integral basis (with respect to field generator \(a\))

$1$, $a$, $a^{2}$, $a^{3}$, $a^{4}$, $\frac{1}{4552} a^{5} - \frac{499}{4552} a^{4} - \frac{1875}{4552} a^{3} + \frac{711}{4552} a^{2} + \frac{927}{4552} a - \frac{1051}{2276}$

magma: IntegralBasis(K);
 
sage: K.integral_basis()
 
gp: K.zk
 

Class group and class number

$C_{4}$, which has order $4$

magma: ClassGroup(K);
 
sage: K.class_group().invariants()
 
gp: K.clgp
 

Unit group

magma: UK, f := UnitGroup(K);
 
sage: UK = K.unit_group()
 
Rank:  $3$
magma: UnitRank(K);
 
sage: UK.rank()
 
gp: K.fu
 
Torsion generator:  \( -1 \) (order $2$)
magma: K!f(TU.1) where TU,f is TorsionUnitGroup(K);
 
sage: UK.torsion_generator()
 
gp: K.tu[2]
 
Fundamental units:  \( \frac{953}{2276} a^{5} + \frac{137}{2276} a^{4} - \frac{16147}{2276} a^{3} + \frac{97203}{2276} a^{2} + \frac{61795}{2276} a - \frac{65029}{1138} \),  \( \frac{6721}{1138} a^{5} + \frac{1045}{1138} a^{4} - \frac{113463}{1138} a^{3} + \frac{681831}{1138} a^{2} + \frac{451603}{1138} a - \frac{457112}{569} \),  \( \frac{83303}{2276} a^{5} + \frac{7495}{2276} a^{4} - \frac{1411469}{2276} a^{3} + \frac{8537361}{2276} a^{2} + \frac{5111373}{2276} a - \frac{6030823}{1138} \)
magma: [K!f(g): g in Generators(UK)];
 
sage: UK.fundamental_units()
 
gp: K.fu
 
Regulator:  \( 1245.04383054 \)
magma: Regulator(K);
 
sage: K.regulator()
 
gp: K.reg
 

Galois group

$S_5$ (as 6T14):

magma: GaloisGroup(K);
 
sage: K.galois_group(type='pari')
 
gp: polgalois(K.pol)
 
A non-solvable group of order 120
The 7 conjugacy class representatives for $\PGL(2,5)$
Character table for $\PGL(2,5)$

Intermediate fields

The extension is primitive: there are no intermediate fields between this field and $\Q$.

Sibling algebras

Twin sextic algebra: \(\Q\) $\times$ 5.1.4429.1
Degree 5 sibling: data not computed
Degree 10 siblings: data not computed
Degree 12 sibling: data not computed
Degree 15 sibling: data not computed
Degree 20 siblings: data not computed
Degree 24 sibling: data not computed
Degree 30 siblings: data not computed
Degree 40 sibling: data not computed

Frobenius cycle types

$p$ 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59
Cycle type ${\href{/LocalNumberField/2.4.0.1}{4} }{,}\,{\href{/LocalNumberField/2.1.0.1}{1} }^{2}$ ${\href{/LocalNumberField/3.5.0.1}{5} }{,}\,{\href{/LocalNumberField/3.1.0.1}{1} }$ ${\href{/LocalNumberField/5.5.0.1}{5} }{,}\,{\href{/LocalNumberField/5.1.0.1}{1} }$ ${\href{/LocalNumberField/7.6.0.1}{6} }$ ${\href{/LocalNumberField/11.6.0.1}{6} }$ ${\href{/LocalNumberField/13.3.0.1}{3} }^{2}$ ${\href{/LocalNumberField/17.5.0.1}{5} }{,}\,{\href{/LocalNumberField/17.1.0.1}{1} }$ ${\href{/LocalNumberField/19.6.0.1}{6} }$ ${\href{/LocalNumberField/23.3.0.1}{3} }^{2}$ ${\href{/LocalNumberField/29.2.0.1}{2} }^{3}$ ${\href{/LocalNumberField/31.4.0.1}{4} }{,}\,{\href{/LocalNumberField/31.1.0.1}{1} }^{2}$ ${\href{/LocalNumberField/37.5.0.1}{5} }{,}\,{\href{/LocalNumberField/37.1.0.1}{1} }$ ${\href{/LocalNumberField/41.5.0.1}{5} }{,}\,{\href{/LocalNumberField/41.1.0.1}{1} }$ R ${\href{/LocalNumberField/47.4.0.1}{4} }{,}\,{\href{/LocalNumberField/47.1.0.1}{1} }^{2}$ ${\href{/LocalNumberField/53.4.0.1}{4} }{,}\,{\href{/LocalNumberField/53.1.0.1}{1} }^{2}$ ${\href{/LocalNumberField/59.3.0.1}{3} }^{2}$

In the table, R denotes a ramified prime. Cycle lengths which are repeated in a cycle type are indicated by exponents.

magma: p := 7; // to obtain a list of $[e_i,f_i]$ for the factorization of the ideal $p\mathcal{O}_K$:
 
magma: idealfactors := Factorization(p*Integers(K)); // get the data
 
magma: [<primefactor[2], Valuation(Norm(primefactor[1]), p)> : primefactor in idealfactors];
 
sage: p = 7; # to obtain a list of $[e_i,f_i]$ for the factorization of the ideal $p\mathcal{O}_K$:
 
sage: [(e, pr.norm().valuation(p)) for pr,e in K.factor(p)]
 
gp: p = 7; \\ to obtain a list of $[e_i,f_i]$ for the factorization of the ideal $p\mathcal{O}_K$:
 
gp: idealfactors = idealprimedec(K, p); \\ get the data
 
gp: vector(length(idealfactors), j, [idealfactors[j][3], idealfactors[j][4]])
 

Local algebras for ramified primes

$p$LabelPolynomial $e$ $f$ $c$ Galois group Slope content
$43$43.6.3.1$x^{6} - 86 x^{4} + 1849 x^{2} - 7950700$$2$$3$$3$$C_6$$[\ ]_{2}^{3}$
$103$103.2.1.2$x^{2} + 206$$2$$1$$1$$C_2$$[\ ]_{2}$
103.4.2.1$x^{4} + 927 x^{2} + 265225$$2$$2$$2$$C_2^2$$[\ ]_{2}^{2}$

Artin representations

Label Dimension Conductor Defining polynomial of Artin field $G$ Ind $\chi(c)$
* 1.1.1t1.1c1$1$ $1$ $x$ $C_1$ $1$ $1$
1.43_103.2t1.1c1$1$ $ 43 \cdot 103 $ $x^{2} - x - 1107$ $C_2$ (as 2T1) $1$ $1$
4.43e3_103e3.10t12.2c1$4$ $ 43^{3} \cdot 103^{3}$ $x^{6} - x^{5} - 17 x^{4} + 121 x^{3} - 51 x^{2} - 208 x + 164$ $\PGL(2,5)$ (as 6T14) $1$ $0$
4.43_103.5t5.2c1$4$ $ 43 \cdot 103 $ $x^{6} - x^{5} - 17 x^{4} + 121 x^{3} - 51 x^{2} - 208 x + 164$ $\PGL(2,5)$ (as 6T14) $1$ $0$
5.43e2_103e2.10t13.2c1$5$ $ 43^{2} \cdot 103^{2}$ $x^{6} - x^{5} - 17 x^{4} + 121 x^{3} - 51 x^{2} - 208 x + 164$ $\PGL(2,5)$ (as 6T14) $1$ $1$
* 5.43e3_103e3.6t14.2c1$5$ $ 43^{3} \cdot 103^{3}$ $x^{6} - x^{5} - 17 x^{4} + 121 x^{3} - 51 x^{2} - 208 x + 164$ $\PGL(2,5)$ (as 6T14) $1$ $1$
6.43e3_103e3.20t35.2c1$6$ $ 43^{3} \cdot 103^{3}$ $x^{6} - x^{5} - 17 x^{4} + 121 x^{3} - 51 x^{2} - 208 x + 164$ $\PGL(2,5)$ (as 6T14) $1$ $-2$

Data is given for all irreducible representations of the Galois group for the Galois closure of this field. Those marked with * are summands in the permutation representation coming from this field. Representations which appear with multiplicity greater than one are indicated by exponents on the *.