Properties

Label 14.10.316...273.1
Degree $14$
Signature $[10, 2]$
Discriminant $3.162\times 10^{18}$
Root discriminant \(20.96\)
Ramified primes $17,23,64879$
Class number $1$
Class group trivial
Galois group $C_2^7.S_7$ (as 14T57)

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Show commands: Magma / Oscar / PariGP / SageMath

Normalized defining polynomial

sage: x = polygen(QQ); K.<a> = NumberField(x^14 - 4*x^13 - 6*x^12 + 28*x^11 + 29*x^10 - 61*x^9 - 215*x^8 + 237*x^7 + 347*x^6 - 324*x^5 - 202*x^4 + 139*x^3 + 47*x^2 - 14*x - 1)
 
gp: K = bnfinit(y^14 - 4*y^13 - 6*y^12 + 28*y^11 + 29*y^10 - 61*y^9 - 215*y^8 + 237*y^7 + 347*y^6 - 324*y^5 - 202*y^4 + 139*y^3 + 47*y^2 - 14*y - 1, 1)
 
magma: R<x> := PolynomialRing(Rationals()); K<a> := NumberField(x^14 - 4*x^13 - 6*x^12 + 28*x^11 + 29*x^10 - 61*x^9 - 215*x^8 + 237*x^7 + 347*x^6 - 324*x^5 - 202*x^4 + 139*x^3 + 47*x^2 - 14*x - 1);
 
oscar: Qx, x = PolynomialRing(QQ); K, a = NumberField(x^14 - 4*x^13 - 6*x^12 + 28*x^11 + 29*x^10 - 61*x^9 - 215*x^8 + 237*x^7 + 347*x^6 - 324*x^5 - 202*x^4 + 139*x^3 + 47*x^2 - 14*x - 1)
 

\( x^{14} - 4 x^{13} - 6 x^{12} + 28 x^{11} + 29 x^{10} - 61 x^{9} - 215 x^{8} + 237 x^{7} + 347 x^{6} + \cdots - 1 \) Copy content Toggle raw display

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

Invariants

Degree:  $14$
sage: K.degree()
 
gp: poldegree(K.pol)
 
magma: Degree(K);
 
oscar: degree(K)
 
Signature:  $[10, 2]$
sage: K.signature()
 
gp: K.sign
 
magma: Signature(K);
 
oscar: signature(K)
 
Discriminant:   \(3161612016871142273\) \(\medspace = 17^{5}\cdot 23^{2}\cdot 64879^{2}\) Copy content Toggle raw display
sage: K.disc()
 
gp: K.disc
 
magma: OK := Integers(K); Discriminant(OK);
 
oscar: OK = ring_of_integers(K); discriminant(OK)
 
Root discriminant:  \(20.96\)
sage: (K.disc().abs())^(1./K.degree())
 
gp: abs(K.disc)^(1/poldegree(K.pol))
 
magma: Abs(Discriminant(OK))^(1/Degree(K));
 
oscar: (1.0 * dK)^(1/degree(K))
 
Galois root discriminant:  $17^{1/2}23^{1/2}64879^{1/2}\approx 5036.634689949233$
Ramified primes:   \(17\), \(23\), \(64879\) Copy content Toggle raw display
sage: K.disc().support()
 
gp: factor(abs(K.disc))[,1]~
 
magma: PrimeDivisors(Discriminant(OK));
 
oscar: prime_divisors(discriminant((OK)))
 
Discriminant root field:  \(\Q(\sqrt{17}) \)
$\card{ \Aut(K/\Q) }$:  $2$
sage: K.automorphisms()
 
magma: Automorphisms(K);
 
oscar: automorphisms(K)
 
This field is not Galois over $\Q$.
This is not a CM field.

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

$1$, $a$, $a^{2}$, $a^{3}$, $a^{4}$, $a^{5}$, $a^{6}$, $a^{7}$, $a^{8}$, $a^{9}$, $a^{10}$, $a^{11}$, $a^{12}$, $\frac{1}{10471571237}a^{13}-\frac{4081298086}{10471571237}a^{12}+\frac{2610428045}{10471571237}a^{11}-\frac{3747178800}{10471571237}a^{10}-\frac{3448605331}{10471571237}a^{9}+\frac{1092756058}{10471571237}a^{8}+\frac{2672491688}{10471571237}a^{7}-\frac{1444137529}{10471571237}a^{6}+\frac{1986766771}{10471571237}a^{5}+\frac{3287951789}{10471571237}a^{4}-\frac{1390306656}{10471571237}a^{3}+\frac{282911940}{10471571237}a^{2}+\frac{1424474522}{10471571237}a-\frac{2272174995}{10471571237}$ Copy content Toggle raw display

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

Monogenic:  Not computed
Index:  $1$
Inessential primes:  None

Class group and class number

Trivial group, which has order $1$

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

Unit group

sage: UK = K.unit_group()
 
magma: UK, fUK := UnitGroup(K);
 
oscar: UK, fUK = unit_group(OK)
 
Rank:  $11$
sage: UK.rank()
 
gp: K.fu
 
magma: UnitRank(K);
 
oscar: rank(UK)
 
Torsion generator:   \( -1 \)  (order $2$) Copy content Toggle raw display
sage: UK.torsion_generator()
 
gp: K.tu[2]
 
magma: K!f(TU.1) where TU,f is TorsionUnitGroup(K);
 
oscar: torsion_units_generator(OK)
 
Fundamental units:   $\frac{2763816314}{10471571237}a^{13}-\frac{10665468517}{10471571237}a^{12}-\frac{16668536112}{10471571237}a^{11}+\frac{69506535392}{10471571237}a^{10}+\frac{81188770045}{10471571237}a^{9}-\frac{120125850047}{10471571237}a^{8}-\frac{567319764631}{10471571237}a^{7}+\frac{507426018939}{10471571237}a^{6}+\frac{727111816258}{10471571237}a^{5}-\frac{528738567562}{10471571237}a^{4}-\frac{209176599586}{10471571237}a^{3}+\frac{65228535805}{10471571237}a^{2}-\frac{13248133878}{10471571237}a+\frac{11537552119}{10471571237}$, $\frac{6161012256}{10471571237}a^{13}-\frac{24975319031}{10471571237}a^{12}-\frac{33340055816}{10471571237}a^{11}+\frac{166083969277}{10471571237}a^{10}+\frac{154332709182}{10471571237}a^{9}-\frac{331743369994}{10471571237}a^{8}-\frac{1230860266466}{10471571237}a^{7}+\frac{1450421773658}{10471571237}a^{6}+\frac{1593250100809}{10471571237}a^{5}-\frac{1765525105961}{10471571237}a^{4}-\frac{543050899524}{10471571237}a^{3}+\frac{561168213051}{10471571237}a^{2}+\frac{56801266891}{10471571237}a-\frac{26445742605}{10471571237}$, $\frac{734710875}{10471571237}a^{13}+\frac{2125910506}{10471571237}a^{12}-\frac{23485727700}{10471571237}a^{11}-\frac{11157717658}{10471571237}a^{10}+\frac{144498358592}{10471571237}a^{9}+\frac{109921304817}{10471571237}a^{8}-\frac{359049870691}{10471571237}a^{7}-\frac{859303447620}{10471571237}a^{6}+\frac{1107964249976}{10471571237}a^{5}+\frac{1083207586678}{10471571237}a^{4}-\frac{1039279196259}{10471571237}a^{3}-\frac{293771566129}{10471571237}a^{2}+\frac{185609637475}{10471571237}a-\frac{11539282733}{10471571237}$, $\frac{1397116103}{10471571237}a^{13}-\frac{6334098659}{10471571237}a^{12}-\frac{4526318851}{10471571237}a^{11}+\frac{39933408642}{10471571237}a^{10}+\frac{15597823373}{10471571237}a^{9}-\frac{83162017514}{10471571237}a^{8}-\frac{237743573498}{10471571237}a^{7}+\frac{443325111604}{10471571237}a^{6}+\frac{145188348429}{10471571237}a^{5}-\frac{479316645330}{10471571237}a^{4}+\frac{132187852343}{10471571237}a^{3}+\frac{82410611334}{10471571237}a^{2}-\frac{52158795987}{10471571237}a+\frac{2888313997}{10471571237}$, $\frac{1919832779}{10471571237}a^{13}-\frac{6615547587}{10471571237}a^{12}-\frac{12993157833}{10471571237}a^{11}+\frac{38317633082}{10471571237}a^{10}+\frac{63195572579}{10471571237}a^{9}-\frac{28775012178}{10471571237}a^{8}-\frac{362816782957}{10471571237}a^{7}+\frac{165681807919}{10471571237}a^{6}+\frac{316012207736}{10471571237}a^{5}-\frac{67784281902}{10471571237}a^{4}+\frac{147547912661}{10471571237}a^{3}-\frac{81924585725}{10471571237}a^{2}-\frac{129948724008}{10471571237}a-\frac{854908902}{10471571237}$, $\frac{4005690627}{10471571237}a^{13}-\frac{16590650031}{10471571237}a^{12}-\frac{19497485179}{10471571237}a^{11}+\frac{107430923293}{10471571237}a^{10}+\frac{84722965331}{10471571237}a^{9}-\frac{208013481299}{10471571237}a^{8}-\frac{750289331904}{10471571237}a^{7}+\frac{990598132647}{10471571237}a^{6}+\frac{788565211984}{10471571237}a^{5}-\frac{1171793538554}{10471571237}a^{4}+\frac{20145302515}{10471571237}a^{3}+\frac{297629684887}{10471571237}a^{2}-\frac{110695482361}{10471571237}a+\frac{6687877957}{10471571237}$, $\frac{2763816314}{10471571237}a^{13}-\frac{10665468517}{10471571237}a^{12}-\frac{16668536112}{10471571237}a^{11}+\frac{69506535392}{10471571237}a^{10}+\frac{81188770045}{10471571237}a^{9}-\frac{120125850047}{10471571237}a^{8}-\frac{567319764631}{10471571237}a^{7}+\frac{507426018939}{10471571237}a^{6}+\frac{727111816258}{10471571237}a^{5}-\frac{528738567562}{10471571237}a^{4}-\frac{209176599586}{10471571237}a^{3}+\frac{65228535805}{10471571237}a^{2}-\frac{13248133878}{10471571237}a+\frac{22009123356}{10471571237}$, $\frac{5095166160}{10471571237}a^{13}-\frac{22267238092}{10471571237}a^{12}-\frac{22389363074}{10471571237}a^{11}+\frac{150487206877}{10471571237}a^{10}+\frac{94656508187}{10471571237}a^{9}-\frac{342338721054}{10471571237}a^{8}-\frac{983378561954}{10471571237}a^{7}+\frac{1551717814077}{10471571237}a^{6}+\frac{1217418887397}{10471571237}a^{5}-\frac{1987682036819}{10471571237}a^{4}-\frac{380026261334}{10471571237}a^{3}+\frac{711523910858}{10471571237}a^{2}+\frac{49151633899}{10471571237}a-\frac{56438211332}{10471571237}$, $\frac{6904280171}{10471571237}a^{13}-\frac{22346574132}{10471571237}a^{12}-\frac{56527515636}{10471571237}a^{11}+\frac{143014607631}{10471571237}a^{10}+\frac{296199907338}{10471571237}a^{9}-\frac{148303737140}{10471571237}a^{8}-\frac{1532385172064}{10471571237}a^{7}+\frac{392660387023}{10471571237}a^{6}+\frac{2288332211194}{10471571237}a^{5}-\frac{198435553028}{10471571237}a^{4}-\frac{985962269259}{10471571237}a^{3}-\frac{122403999566}{10471571237}a^{2}+\frac{43018353211}{10471571237}a+\frac{11947915797}{10471571237}$, $\frac{4160932417}{10471571237}a^{13}-\frac{16999567176}{10471571237}a^{12}-\frac{21194854963}{10471571237}a^{11}+\frac{109439944034}{10471571237}a^{10}+\frac{96786593418}{10471571237}a^{9}-\frac{203287867561}{10471571237}a^{8}-\frac{805063338129}{10471571237}a^{7}+\frac{950751130543}{10471571237}a^{6}+\frac{872300164687}{10471571237}a^{5}-\frac{1008055212892}{10471571237}a^{4}-\frac{76988747243}{10471571237}a^{3}+\frac{147639147139}{10471571237}a^{2}-\frac{75878501102}{10471571237}a+\frac{24897437353}{10471571237}$, $\frac{5426301381}{10471571237}a^{13}-\frac{27101229537}{10471571237}a^{12}-\frac{9854328116}{10471571237}a^{11}+\frac{177241686935}{10471571237}a^{10}+\frac{9834350590}{10471571237}a^{9}-\frac{441664674811}{10471571237}a^{8}-\frac{871810395775}{10471571237}a^{7}+\frac{2309725221278}{10471571237}a^{6}+\frac{485285850833}{10471571237}a^{5}-\frac{2848732692639}{10471571237}a^{4}+\frac{496228296735}{10471571237}a^{3}+\frac{854939779180}{10471571237}a^{2}-\frac{118336799347}{10471571237}a-\frac{14906459872}{10471571237}$ Copy content Toggle raw display
sage: UK.fundamental_units()
 
gp: K.fu
 
magma: [K|fUK(g): g in Generators(UK)];
 
oscar: [K(fUK(a)) for a in gens(UK)]
 
Regulator:  \( 18052.2756731 \)
sage: K.regulator()
 
gp: K.reg
 
magma: Regulator(K);
 
oscar: regulator(K)
 

Class number formula

\[ \begin{aligned}\lim_{s\to 1} (s-1)\zeta_K(s) =\mathstrut & \frac{2^{r_1}\cdot (2\pi)^{r_2}\cdot R\cdot h}{w\cdot\sqrt{|D|}}\cr \approx\mathstrut &\frac{2^{10}\cdot(2\pi)^{2}\cdot 18052.2756731 \cdot 1}{2\cdot\sqrt{3161612016871142273}}\cr\approx \mathstrut & 0.205214180582 \end{aligned}\]

# self-contained SageMath code snippet to compute the analytic class number formula
 
x = polygen(QQ); K.<a> = NumberField(x^14 - 4*x^13 - 6*x^12 + 28*x^11 + 29*x^10 - 61*x^9 - 215*x^8 + 237*x^7 + 347*x^6 - 324*x^5 - 202*x^4 + 139*x^3 + 47*x^2 - 14*x - 1)
 
DK = K.disc(); r1,r2 = K.signature(); RK = K.regulator(); RR = RK.parent()
 
hK = K.class_number(); wK = K.unit_group().torsion_generator().order();
 
2^r1 * (2*RR(pi))^r2 * RK * hK / (wK * RR(sqrt(abs(DK))))
 
# self-contained Pari/GP code snippet to compute the analytic class number formula
 
K = bnfinit(x^14 - 4*x^13 - 6*x^12 + 28*x^11 + 29*x^10 - 61*x^9 - 215*x^8 + 237*x^7 + 347*x^6 - 324*x^5 - 202*x^4 + 139*x^3 + 47*x^2 - 14*x - 1, 1);
 
[polcoeff (lfunrootres (lfuncreate (K))[1][1][2], -1), 2^K.r1 * (2*Pi)^K.r2 * K.reg * K.no / (K.tu[1] * sqrt (abs (K.disc)))]
 
/* self-contained Magma code snippet to compute the analytic class number formula */
 
Qx<x> := PolynomialRing(QQ); K<a> := NumberField(x^14 - 4*x^13 - 6*x^12 + 28*x^11 + 29*x^10 - 61*x^9 - 215*x^8 + 237*x^7 + 347*x^6 - 324*x^5 - 202*x^4 + 139*x^3 + 47*x^2 - 14*x - 1);
 
OK := Integers(K); DK := Discriminant(OK);
 
UK, fUK := UnitGroup(OK); clK, fclK := ClassGroup(OK);
 
r1,r2 := Signature(K); RK := Regulator(K); RR := Parent(RK);
 
hK := #clK; wK := #TorsionSubgroup(UK);
 
2^r1 * (2*Pi(RR))^r2 * RK * hK / (wK * Sqrt(RR!Abs(DK)));
 
# self-contained Oscar code snippet to compute the analytic class number formula
 
Qx, x = PolynomialRing(QQ); K, a = NumberField(x^14 - 4*x^13 - 6*x^12 + 28*x^11 + 29*x^10 - 61*x^9 - 215*x^8 + 237*x^7 + 347*x^6 - 324*x^5 - 202*x^4 + 139*x^3 + 47*x^2 - 14*x - 1);
 
OK = ring_of_integers(K); DK = discriminant(OK);
 
UK, fUK = unit_group(OK); clK, fclK = class_group(OK);
 
r1,r2 = signature(K); RK = regulator(K); RR = parent(RK);
 
hK = order(clK); wK = torsion_units_order(K);
 
2^r1 * (2*pi)^r2 * RK * hK / (wK * sqrt(RR(abs(DK))))
 

Galois group

$C_2^7.S_7$ (as 14T57):

sage: K.galois_group(type='pari')
 
gp: polgalois(K.pol)
 
magma: G = GaloisGroup(K);
 
oscar: G, Gtx = galois_group(K); G, transitive_group_identification(G)
 
A non-solvable group of order 645120
The 110 conjugacy class representatives for $C_2^7.S_7$
Character table for $C_2^7.S_7$

Intermediate fields

7.7.25367689.1

Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.

sage: K.subfields()[1:-1]
 
gp: L = nfsubfields(K); L[2..length(b)]
 
magma: L := Subfields(K); L[2..#L];
 
oscar: subfields(K)[2:end-1]
 

Sibling fields

Degree 14 sibling: data not computed
Degree 28 siblings: data not computed
Degree 42 siblings: data not computed
Minimal sibling: This field is its own minimal sibling

Frobenius cycle types

$p$ $2$ $3$ $5$ $7$ $11$ $13$ $17$ $19$ $23$ $29$ $31$ $37$ $41$ $43$ $47$ $53$ $59$
Cycle type ${\href{/padicField/2.7.0.1}{7} }^{2}$ ${\href{/padicField/3.14.0.1}{14} }$ ${\href{/padicField/5.14.0.1}{14} }$ ${\href{/padicField/7.14.0.1}{14} }$ ${\href{/padicField/11.5.0.1}{5} }^{2}{,}\,{\href{/padicField/11.4.0.1}{4} }$ ${\href{/padicField/13.8.0.1}{8} }{,}\,{\href{/padicField/13.4.0.1}{4} }{,}\,{\href{/padicField/13.1.0.1}{1} }^{2}$ R ${\href{/padicField/19.12.0.1}{12} }{,}\,{\href{/padicField/19.2.0.1}{2} }$ R ${\href{/padicField/29.10.0.1}{10} }{,}\,{\href{/padicField/29.2.0.1}{2} }^{2}$ ${\href{/padicField/31.8.0.1}{8} }{,}\,{\href{/padicField/31.3.0.1}{3} }^{2}$ ${\href{/padicField/37.6.0.1}{6} }^{2}{,}\,{\href{/padicField/37.2.0.1}{2} }$ ${\href{/padicField/41.4.0.1}{4} }^{3}{,}\,{\href{/padicField/41.1.0.1}{1} }^{2}$ ${\href{/padicField/43.7.0.1}{7} }^{2}$ ${\href{/padicField/47.4.0.1}{4} }^{3}{,}\,{\href{/padicField/47.2.0.1}{2} }$ ${\href{/padicField/53.6.0.1}{6} }{,}\,{\href{/padicField/53.4.0.1}{4} }{,}\,{\href{/padicField/53.2.0.1}{2} }^{2}$ ${\href{/padicField/59.5.0.1}{5} }^{2}{,}\,{\href{/padicField/59.2.0.1}{2} }^{2}$

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

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

Local algebras for ramified primes

$p$LabelPolynomial $e$ $f$ $c$ Galois group Slope content
\(17\) Copy content Toggle raw display 17.2.0.1$x^{2} + 16 x + 3$$1$$2$$0$$C_2$$[\ ]^{2}$
17.2.0.1$x^{2} + 16 x + 3$$1$$2$$0$$C_2$$[\ ]^{2}$
17.2.1.2$x^{2} + 51$$2$$1$$1$$C_2$$[\ ]_{2}$
17.2.1.2$x^{2} + 51$$2$$1$$1$$C_2$$[\ ]_{2}$
17.6.3.1$x^{6} + 459 x^{5} + 70280 x^{4} + 3597823 x^{3} + 1271380 x^{2} + 4696159 x + 50437479$$2$$3$$3$$C_6$$[\ ]_{2}^{3}$
\(23\) Copy content Toggle raw display $\Q_{23}$$x + 18$$1$$1$$0$Trivial$[\ ]$
$\Q_{23}$$x + 18$$1$$1$$0$Trivial$[\ ]$
23.2.0.1$x^{2} + 21 x + 5$$1$$2$$0$$C_2$$[\ ]^{2}$
23.2.1.1$x^{2} + 115$$2$$1$$1$$C_2$$[\ ]_{2}$
23.2.1.1$x^{2} + 115$$2$$1$$1$$C_2$$[\ ]_{2}$
23.3.0.1$x^{3} + 2 x + 18$$1$$3$$0$$C_3$$[\ ]^{3}$
23.3.0.1$x^{3} + 2 x + 18$$1$$3$$0$$C_3$$[\ ]^{3}$
\(64879\) Copy content Toggle raw display $\Q_{64879}$$x$$1$$1$$0$Trivial$[\ ]$
$\Q_{64879}$$x$$1$$1$$0$Trivial$[\ ]$
Deg $4$$2$$2$$2$
Deg $8$$1$$8$$0$$C_8$$[\ ]^{8}$