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Properties

Label 32.0.766...000.1
Degree $32$
Signature $[0, 16]$
Discriminant $7.670\times 10^{45}$
Root discriminant $27.16$
Ramified primes $2, 5, 17$
Class number $5$ (GRH)
Class group $[5]$ (GRH)
Galois group $C_2\times C_4\times D_4$ (as 32T204)

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Normalized defining polynomial

sage: x = polygen(QQ); K.<a> = NumberField(x^32 - 4*x^31 + 10*x^30 - 20*x^29 + 34*x^28 - 32*x^27 - 8*x^26 + 112*x^25 - 308*x^24 + 608*x^23 - 880*x^22 + 944*x^21 - 536*x^20 - 672*x^19 + 2960*x^18 - 6176*x^17 + 9744*x^16 - 12352*x^15 + 11840*x^14 - 5376*x^13 - 8576*x^12 + 30208*x^11 - 56320*x^10 + 77824*x^9 - 78848*x^8 + 57344*x^7 - 8192*x^6 - 65536*x^5 + 139264*x^4 - 163840*x^3 + 163840*x^2 - 131072*x + 65536)
 
gp: K = bnfinit(x^32 - 4*x^31 + 10*x^30 - 20*x^29 + 34*x^28 - 32*x^27 - 8*x^26 + 112*x^25 - 308*x^24 + 608*x^23 - 880*x^22 + 944*x^21 - 536*x^20 - 672*x^19 + 2960*x^18 - 6176*x^17 + 9744*x^16 - 12352*x^15 + 11840*x^14 - 5376*x^13 - 8576*x^12 + 30208*x^11 - 56320*x^10 + 77824*x^9 - 78848*x^8 + 57344*x^7 - 8192*x^6 - 65536*x^5 + 139264*x^4 - 163840*x^3 + 163840*x^2 - 131072*x + 65536, 1)
 
magma: R<x> := PolynomialRing(Rationals()); K<a> := NumberField(R![65536, -131072, 163840, -163840, 139264, -65536, -8192, 57344, -78848, 77824, -56320, 30208, -8576, -5376, 11840, -12352, 9744, -6176, 2960, -672, -536, 944, -880, 608, -308, 112, -8, -32, 34, -20, 10, -4, 1]);
 

\(x^{32} - 4 x^{31} + 10 x^{30} - 20 x^{29} + 34 x^{28} - 32 x^{27} - 8 x^{26} + 112 x^{25} - 308 x^{24} + 608 x^{23} - 880 x^{22} + 944 x^{21} - 536 x^{20} - 672 x^{19} + 2960 x^{18} - 6176 x^{17} + 9744 x^{16} - 12352 x^{15} + 11840 x^{14} - 5376 x^{13} - 8576 x^{12} + 30208 x^{11} - 56320 x^{10} + 77824 x^{9} - 78848 x^{8} + 57344 x^{7} - 8192 x^{6} - 65536 x^{5} + 139264 x^{4} - 163840 x^{3} + 163840 x^{2} - 131072 x + 65536\)  Toggle raw display

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

Invariants

Degree:  $32$
sage: K.degree()
 
gp: poldegree(K.pol)
 
magma: Degree(K);
 
Signature:  $[0, 16]$
sage: K.signature()
 
gp: K.sign
 
magma: Signature(K);
 
Discriminant:  \(7669926418924454281216000000000000000000000000\)\(\medspace = 2^{64}\cdot 5^{24}\cdot 17^{8}\)
sage: K.disc()
 
gp: K.disc
 
magma: Discriminant(Integers(K));
 
Root discriminant:  $27.16$
sage: (K.disc().abs())^(1./K.degree())
 
gp: abs(K.disc)^(1/poldegree(K.pol))
 
magma: Abs(Discriminant(Integers(K)))^(1/Degree(K));
 
Ramified primes:  $2, 5, 17$
sage: K.disc().support()
 
gp: factor(abs(K.disc))[,1]~
 
magma: PrimeDivisors(Discriminant(Integers(K)));
 
$|\Aut(K/\Q)|$:  $16$
This field is not Galois over $\Q$.
This is a CM field.

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

$1$, $a$, $a^{2}$, $a^{3}$, $\frac{1}{2} a^{4}$, $\frac{1}{2} a^{5}$, $\frac{1}{2} a^{6}$, $\frac{1}{2} a^{7}$, $\frac{1}{4} a^{8}$, $\frac{1}{4} a^{9}$, $\frac{1}{4} a^{10}$, $\frac{1}{4} a^{11}$, $\frac{1}{8} a^{12}$, $\frac{1}{8} a^{13}$, $\frac{1}{8} a^{14}$, $\frac{1}{8} a^{15}$, $\frac{1}{16} a^{16}$, $\frac{1}{16} a^{17}$, $\frac{1}{32} a^{18} - \frac{1}{16} a^{14} - \frac{1}{8} a^{10} - \frac{1}{4} a^{6} - \frac{1}{2} a^{2}$, $\frac{1}{64} a^{19} - \frac{1}{32} a^{17} + \frac{1}{32} a^{15} - \frac{1}{16} a^{11} + \frac{1}{8} a^{7} - \frac{1}{4} a^{5} + \frac{1}{4} a^{3}$, $\frac{1}{128} a^{20} - \frac{1}{64} a^{18} - \frac{1}{32} a^{17} + \frac{1}{64} a^{16} - \frac{1}{16} a^{15} - \frac{1}{32} a^{12} - \frac{1}{8} a^{11} - \frac{1}{8} a^{9} + \frac{1}{16} a^{8} - \frac{1}{8} a^{6} - \frac{1}{4} a^{5} + \frac{1}{8} a^{4}$, $\frac{1}{128} a^{21} - \frac{1}{64} a^{17} + \frac{1}{32} a^{15} - \frac{1}{16} a^{14} - \frac{1}{32} a^{13} - \frac{1}{16} a^{11} + \frac{1}{16} a^{9} - \frac{1}{8} a^{5} + \frac{1}{4} a^{3} - \frac{1}{2} a^{2}$, $\frac{1}{256} a^{22} - \frac{1}{128} a^{18} - \frac{1}{32} a^{17} + \frac{1}{64} a^{16} - \frac{1}{32} a^{15} - \frac{1}{64} a^{14} - \frac{1}{16} a^{13} - \frac{1}{32} a^{12} - \frac{1}{8} a^{11} + \frac{1}{32} a^{10} - \frac{1}{8} a^{9} - \frac{1}{16} a^{6} + \frac{1}{8} a^{4} - \frac{1}{4} a^{3}$, $\frac{1}{512} a^{23} - \frac{1}{256} a^{21} + \frac{1}{256} a^{19} + \frac{1}{64} a^{16} + \frac{7}{128} a^{15} + \frac{1}{32} a^{14} + \frac{1}{64} a^{11} - \frac{1}{8} a^{10} - \frac{1}{32} a^{9} + \frac{1}{32} a^{7} - \frac{1}{8} a^{6} - \frac{1}{4} a^{5} - \frac{1}{8} a^{4}$, $\frac{1}{1024} a^{24} - \frac{1}{512} a^{22} - \frac{1}{256} a^{21} + \frac{1}{512} a^{20} - \frac{1}{128} a^{19} - \frac{1}{64} a^{18} - \frac{1}{256} a^{16} + \frac{3}{64} a^{15} + \frac{1}{64} a^{13} - \frac{7}{128} a^{12} - \frac{5}{64} a^{10} - \frac{1}{32} a^{9} + \frac{1}{64} a^{8} + \frac{1}{8} a^{7} - \frac{1}{4} a^{6} + \frac{1}{8} a^{5} + \frac{1}{4} a^{3}$, $\frac{1}{1024} a^{25} - \frac{1}{512} a^{21} + \frac{1}{256} a^{19} + \frac{1}{128} a^{18} + \frac{7}{256} a^{17} - \frac{1}{32} a^{16} - \frac{1}{128} a^{15} - \frac{1}{32} a^{14} + \frac{1}{128} a^{13} - \frac{1}{16} a^{12} - \frac{1}{8} a^{11} - \frac{1}{64} a^{9} - \frac{1}{16} a^{8} - \frac{3}{32} a^{7} + \frac{1}{16} a^{6} - \frac{1}{4} a^{5} - \frac{1}{8} a^{4} - \frac{1}{2} a^{2}$, $\frac{1}{2048} a^{26} - \frac{1}{1024} a^{22} - \frac{1}{256} a^{21} + \frac{1}{512} a^{20} - \frac{1}{256} a^{19} - \frac{1}{512} a^{18} - \frac{3}{128} a^{17} + \frac{7}{256} a^{16} + \frac{1}{64} a^{15} + \frac{1}{256} a^{14} - \frac{1}{64} a^{13} + \frac{1}{16} a^{11} - \frac{9}{128} a^{10} - \frac{1}{16} a^{9} - \frac{3}{64} a^{8} + \frac{7}{32} a^{7} + \frac{1}{8} a^{5}$, $\frac{1}{4096} a^{27} - \frac{1}{2048} a^{25} + \frac{1}{2048} a^{23} + \frac{1}{512} a^{20} + \frac{7}{1024} a^{19} - \frac{3}{256} a^{18} + \frac{1}{64} a^{17} - \frac{1}{64} a^{16} - \frac{31}{512} a^{15} - \frac{1}{64} a^{14} + \frac{7}{256} a^{13} + \frac{1}{32} a^{12} - \frac{31}{256} a^{11} - \frac{1}{64} a^{10} + \frac{3}{32} a^{9} + \frac{3}{64} a^{8} - \frac{1}{8} a^{7} - \frac{1}{8} a^{4} - \frac{1}{2} a^{3} - \frac{1}{2} a^{2}$, $\frac{1}{8192} a^{28} - \frac{1}{4096} a^{26} - \frac{1}{2048} a^{25} + \frac{1}{4096} a^{24} - \frac{1}{1024} a^{23} - \frac{1}{512} a^{22} - \frac{1}{2048} a^{20} + \frac{3}{512} a^{19} - \frac{1}{64} a^{18} - \frac{7}{512} a^{17} - \frac{7}{1024} a^{16} + \frac{1}{32} a^{15} - \frac{5}{512} a^{14} - \frac{1}{256} a^{13} - \frac{31}{512} a^{12} - \frac{7}{64} a^{11} + \frac{3}{32} a^{10} - \frac{7}{64} a^{9} + \frac{1}{16} a^{8} - \frac{3}{32} a^{7} - \frac{1}{8} a^{6} - \frac{1}{8} a^{5} - \frac{1}{2} a^{3}$, $\frac{1}{8192} a^{29} - \frac{1}{4096} a^{25} + \frac{1}{2048} a^{23} + \frac{1}{1024} a^{22} + \frac{7}{2048} a^{21} - \frac{1}{256} a^{20} - \frac{1}{1024} a^{19} + \frac{3}{256} a^{18} + \frac{17}{1024} a^{17} - \frac{3}{128} a^{16} - \frac{1}{64} a^{15} - \frac{1}{16} a^{14} - \frac{17}{512} a^{13} + \frac{3}{128} a^{12} - \frac{3}{256} a^{11} + \frac{1}{128} a^{10} + \frac{1}{32} a^{9} + \frac{3}{64} a^{8} - \frac{1}{4} a^{7} - \frac{1}{16} a^{6} + \frac{1}{8} a^{4} + \frac{1}{4} a^{3}$, $\frac{1}{16384} a^{30} - \frac{1}{8192} a^{26} - \frac{1}{2048} a^{25} + \frac{1}{4096} a^{24} - \frac{1}{2048} a^{23} - \frac{1}{4096} a^{22} - \frac{3}{1024} a^{21} + \frac{7}{2048} a^{20} + \frac{1}{512} a^{19} + \frac{1}{2048} a^{18} - \frac{9}{512} a^{17} - \frac{1}{32} a^{16} + \frac{5}{128} a^{15} - \frac{41}{1024} a^{14} + \frac{7}{128} a^{13} - \frac{19}{512} a^{12} + \frac{23}{256} a^{11} + \frac{1}{16} a^{10} - \frac{7}{64} a^{9} + \frac{1}{16} a^{8} - \frac{1}{4} a^{6} - \frac{1}{4} a^{5}$, $\frac{1}{32768} a^{31} - \frac{1}{16384} a^{29} + \frac{1}{16384} a^{27} + \frac{1}{4096} a^{24} + \frac{7}{8192} a^{23} - \frac{3}{2048} a^{22} + \frac{1}{512} a^{21} - \frac{1}{512} a^{20} - \frac{31}{4096} a^{19} - \frac{1}{512} a^{18} - \frac{25}{2048} a^{17} + \frac{1}{256} a^{16} - \frac{95}{2048} a^{15} - \frac{17}{512} a^{14} + \frac{3}{256} a^{13} - \frac{13}{512} a^{12} + \frac{3}{64} a^{11} - \frac{1}{8} a^{10} + \frac{3}{64} a^{8} + \frac{1}{16} a^{7} - \frac{1}{16} a^{6} - \frac{1}{4} a^{5} - \frac{1}{4} a^{4} + \frac{1}{4} a^{3} - \frac{1}{2} a^{2}$  Toggle raw display

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

Class group and class number

$C_{5}$, which has order $5$ (assuming GRH)

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

Unit group

sage: UK = K.unit_group()
 
magma: UK, f := UnitGroup(K);
 
Rank:  $15$
sage: UK.rank()
 
gp: K.fu
 
magma: UnitRank(K);
 
Torsion generator:  \( -\frac{1}{512} a^{31} - \frac{13}{4096} a^{30} + \frac{9}{2048} a^{29} - \frac{1}{64} a^{28} + \frac{17}{512} a^{27} - \frac{145}{2048} a^{26} + \frac{7}{1024} a^{25} + \frac{15}{512} a^{24} - \frac{1}{4} a^{23} + \frac{609}{1024} a^{22} - \frac{531}{512} a^{21} + \frac{281}{256} a^{20} - \frac{255}{256} a^{19} - \frac{143}{512} a^{18} + \frac{697}{256} a^{17} - \frac{1629}{256} a^{16} + \frac{685}{64} a^{15} - \frac{3681}{256} a^{14} + \frac{1927}{128} a^{13} - \frac{601}{64} a^{12} - \frac{35}{4} a^{11} + \frac{963}{32} a^{10} - \frac{545}{8} a^{9} + \frac{6241}{64} a^{8} - \frac{213}{2} a^{7} + \frac{229}{4} a^{6} - 40 a^{5} - 110 a^{4} + \frac{739}{4} a^{3} - 226 a^{2} + 168 a - 232 \) (order $40$)  Toggle raw display
sage: UK.torsion_generator()
 
gp: K.tu[2]
 
magma: K!f(TU.1) where TU,f is TorsionUnitGroup(K);
 
Fundamental units:  Units are too long to display, but can be downloaded with other data for this field from 'Stored data to gp' link to the right (assuming GRH)
sage: UK.fundamental_units()
 
gp: K.fu
 
magma: [K!f(g): g in Generators(UK)];
 
Regulator:  \( 23735246685.523792 \) (assuming GRH)
sage: K.regulator()
 
gp: K.reg
 
magma: Regulator(K);
 

Class number formula

$\displaystyle\lim_{s\to 1} (s-1)\zeta_K(s) \approx\frac{2^{0}\cdot(2\pi)^{16}\cdot 23735246685.523792 \cdot 5}{40\sqrt{7669926418924454281216000000000000000000000000}}\approx 0.199887693977467$ (assuming GRH)

Galois group

$C_2\times C_4\times D_4$ (as 32T204):

sage: K.galois_group(type='pari')
 
gp: polgalois(K.pol)
 
magma: GaloisGroup(K);
 
A solvable group of order 64
The 40 conjugacy class representatives for $C_2\times C_4\times D_4$
Character table for $C_2\times C_4\times D_4$ is not computed

Intermediate fields

\(\Q(\sqrt{10}) \), \(\Q(\sqrt{-5}) \), \(\Q(\sqrt{-10}) \), \(\Q(\sqrt{5}) \), \(\Q(\sqrt{-1}) \), \(\Q(\sqrt{-2}) \), \(\Q(\sqrt{2}) \), 4.0.8000.2, \(\Q(\zeta_{20})^+\), 4.4.8000.1, \(\Q(\zeta_{5})\), \(\Q(\zeta_{8})\), 4.4.108800.1, 4.0.27200.2, \(\Q(i, \sqrt{10})\), \(\Q(i, \sqrt{5})\), \(\Q(\sqrt{-2}, \sqrt{-5})\), \(\Q(\sqrt{-2}, \sqrt{5})\), 4.0.1088.2, 4.4.4352.1, \(\Q(\sqrt{2}, \sqrt{-5})\), \(\Q(\sqrt{2}, \sqrt{5})\), 8.0.11837440000.20, 8.0.18939904.2, 8.0.40960000.1, 8.0.11837440000.5, 8.8.11837440000.1, 8.0.739840000.6, 8.0.11837440000.9, 8.0.1024000000.2, \(\Q(\zeta_{20})\), 8.0.1024000000.1, 8.0.64000000.1, \(\Q(\zeta_{40})^+\), 8.0.64000000.2, 8.8.18496000000.1, 8.0.295936000000.3, Deg 16, \(\Q(\zeta_{40})\), Deg 16, Deg 16, Deg 16, Deg 16, 16.0.342102016000000000000.1

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

Sibling fields

Degree 32 siblings: 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 R ${\href{/LocalNumberField/3.4.0.1}{4} }^{8}$ R ${\href{/LocalNumberField/7.4.0.1}{4} }^{8}$ ${\href{/LocalNumberField/11.4.0.1}{4} }^{8}$ ${\href{/LocalNumberField/13.4.0.1}{4} }^{8}$ R ${\href{/LocalNumberField/19.2.0.1}{2} }^{16}$ ${\href{/LocalNumberField/23.4.0.1}{4} }^{8}$ ${\href{/LocalNumberField/29.4.0.1}{4} }^{8}$ ${\href{/LocalNumberField/31.2.0.1}{2} }^{16}$ ${\href{/LocalNumberField/37.4.0.1}{4} }^{8}$ ${\href{/LocalNumberField/41.2.0.1}{2} }^{8}{,}\,{\href{/LocalNumberField/41.1.0.1}{1} }^{16}$ ${\href{/LocalNumberField/43.4.0.1}{4} }^{8}$ ${\href{/LocalNumberField/47.4.0.1}{4} }^{8}$ ${\href{/LocalNumberField/53.4.0.1}{4} }^{8}$ ${\href{/LocalNumberField/59.2.0.1}{2} }^{16}$

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

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]])
 
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];
 

Local algebras for ramified primes

$p$LabelPolynomial $e$ $f$ $c$ Galois group Slope content
2Data not computed
5Data not computed
$17$17.4.0.1$x^{4} - x + 11$$1$$4$$0$$C_4$$[\ ]^{4}$
17.4.0.1$x^{4} - x + 11$$1$$4$$0$$C_4$$[\ ]^{4}$
17.4.0.1$x^{4} - x + 11$$1$$4$$0$$C_4$$[\ ]^{4}$
17.4.0.1$x^{4} - x + 11$$1$$4$$0$$C_4$$[\ ]^{4}$
17.8.4.1$x^{8} + 6358 x^{4} - 4913 x^{2} + 10106041$$2$$4$$4$$C_4\times C_2$$[\ ]_{2}^{4}$
17.8.4.1$x^{8} + 6358 x^{4} - 4913 x^{2} + 10106041$$2$$4$$4$$C_4\times C_2$$[\ ]_{2}^{4}$