Normalized defining polynomial
\( x^{16} - 6 x^{15} + 30 x^{14} - 108 x^{13} + 411 x^{12} - 1060 x^{11} + 796 x^{10} + 5577 x^{9} + \cdots + 4936153 \)
Invariants
Degree: | $16$ | sage: K.degree()
gp: poldegree(K.pol)
magma: Degree(K);
oscar: degree(K)
| |
Signature: | $[0, 8]$ | sage: K.signature()
gp: K.sign
magma: Signature(K);
oscar: signature(K)
| |
Discriminant: | \(24722989956581301387479701814209\) \(\medspace = 17^{14}\cdot 59^{8}\) | sage: K.disc()
gp: K.disc
magma: OK := Integers(K); Discriminant(OK);
oscar: OK = ring_of_integers(K); discriminant(OK)
| |
Root discriminant: | \(91.64\) | 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: | $17^{7/8}59^{1/2}\approx 91.6365672680861$ | ||
Ramified primes: | \(17\), \(59\) | sage: K.disc().support()
gp: factor(abs(K.disc))[,1]~
magma: PrimeDivisors(Discriminant(OK));
oscar: prime_divisors(discriminant((OK)))
| |
Discriminant root field: | \(\Q\) | ||
$\card{ \Aut(K/\Q) }$: | $8$ | 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 \(a\))
$1$, $a$, $a^{2}$, $a^{3}$, $a^{4}$, $a^{5}$, $a^{6}$, $a^{7}$, $a^{8}$, $a^{9}$, $a^{10}$, $a^{11}$, $\frac{1}{2}a^{12}-\frac{1}{2}a^{9}-\frac{1}{2}a^{6}-\frac{1}{2}a^{3}-\frac{1}{2}$, $\frac{1}{2}a^{13}-\frac{1}{2}a^{10}-\frac{1}{2}a^{7}-\frac{1}{2}a^{4}-\frac{1}{2}a$, $\frac{1}{26}a^{14}-\frac{2}{13}a^{13}-\frac{1}{13}a^{12}-\frac{3}{26}a^{11}-\frac{1}{13}a^{10}-\frac{2}{13}a^{9}-\frac{9}{26}a^{8}+\frac{4}{13}a^{6}-\frac{1}{2}a^{5}+\frac{2}{13}a^{4}-\frac{6}{13}a^{3}-\frac{7}{26}a^{2}-\frac{6}{13}a+\frac{3}{13}$, $\frac{1}{13\!\cdots\!46}a^{15}+\frac{23\!\cdots\!59}{13\!\cdots\!46}a^{14}-\frac{92\!\cdots\!08}{67\!\cdots\!73}a^{13}-\frac{13\!\cdots\!12}{67\!\cdots\!73}a^{12}+\frac{44\!\cdots\!85}{10\!\cdots\!42}a^{11}+\frac{28\!\cdots\!00}{67\!\cdots\!73}a^{10}-\frac{72\!\cdots\!60}{67\!\cdots\!73}a^{9}+\frac{24\!\cdots\!01}{13\!\cdots\!46}a^{8}+\frac{78\!\cdots\!23}{67\!\cdots\!73}a^{7}+\frac{48\!\cdots\!34}{67\!\cdots\!73}a^{6}+\frac{54\!\cdots\!43}{13\!\cdots\!46}a^{5}+\frac{32\!\cdots\!40}{67\!\cdots\!73}a^{4}-\frac{37\!\cdots\!38}{75\!\cdots\!57}a^{3}-\frac{66\!\cdots\!47}{13\!\cdots\!46}a^{2}-\frac{27\!\cdots\!07}{67\!\cdots\!73}a+\frac{34\!\cdots\!63}{13\!\cdots\!46}$
Monogenic: | No | |
Index: | Not computed | |
Inessential primes: | $2$ |
Class group and class number
$C_{2}\times C_{626}$, which has order $1252$ (assuming GRH)
Unit group
Rank: | $7$ | sage: UK.rank()
gp: K.fu
magma: UnitRank(K);
oscar: rank(UK)
| |
Torsion generator: | \( -1 \) (order $2$) | 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: | $\frac{87\!\cdots\!54}{24\!\cdots\!51}a^{15}-\frac{63\!\cdots\!64}{24\!\cdots\!51}a^{14}+\frac{32\!\cdots\!34}{24\!\cdots\!51}a^{13}-\frac{12\!\cdots\!57}{24\!\cdots\!51}a^{12}+\frac{44\!\cdots\!34}{24\!\cdots\!51}a^{11}-\frac{11\!\cdots\!38}{24\!\cdots\!51}a^{10}+\frac{79\!\cdots\!55}{24\!\cdots\!51}a^{9}+\frac{84\!\cdots\!40}{24\!\cdots\!51}a^{8}-\frac{50\!\cdots\!04}{24\!\cdots\!51}a^{7}-\frac{42\!\cdots\!85}{24\!\cdots\!51}a^{6}-\frac{13\!\cdots\!52}{24\!\cdots\!51}a^{5}+\frac{94\!\cdots\!13}{24\!\cdots\!51}a^{4}+\frac{51\!\cdots\!11}{24\!\cdots\!51}a^{3}+\frac{13\!\cdots\!46}{18\!\cdots\!27}a^{2}+\frac{94\!\cdots\!89}{24\!\cdots\!51}a+\frac{11\!\cdots\!81}{24\!\cdots\!51}$, $\frac{63\!\cdots\!06}{24\!\cdots\!51}a^{15}-\frac{46\!\cdots\!21}{24\!\cdots\!51}a^{14}+\frac{24\!\cdots\!87}{24\!\cdots\!51}a^{13}-\frac{91\!\cdots\!57}{24\!\cdots\!51}a^{12}+\frac{32\!\cdots\!87}{24\!\cdots\!51}a^{11}-\frac{85\!\cdots\!04}{24\!\cdots\!51}a^{10}+\frac{60\!\cdots\!74}{24\!\cdots\!51}a^{9}+\frac{62\!\cdots\!43}{24\!\cdots\!51}a^{8}-\frac{43\!\cdots\!23}{24\!\cdots\!51}a^{7}-\frac{28\!\cdots\!82}{24\!\cdots\!51}a^{6}-\frac{97\!\cdots\!20}{24\!\cdots\!51}a^{5}+\frac{55\!\cdots\!22}{24\!\cdots\!51}a^{4}+\frac{36\!\cdots\!29}{24\!\cdots\!51}a^{3}+\frac{10\!\cdots\!41}{18\!\cdots\!27}a^{2}+\frac{70\!\cdots\!58}{24\!\cdots\!51}a+\frac{95\!\cdots\!90}{24\!\cdots\!51}$, $\frac{23\!\cdots\!48}{24\!\cdots\!51}a^{15}-\frac{16\!\cdots\!43}{24\!\cdots\!51}a^{14}+\frac{85\!\cdots\!47}{24\!\cdots\!51}a^{13}-\frac{31\!\cdots\!00}{24\!\cdots\!51}a^{12}+\frac{11\!\cdots\!47}{24\!\cdots\!51}a^{11}-\frac{29\!\cdots\!34}{24\!\cdots\!51}a^{10}+\frac{18\!\cdots\!81}{24\!\cdots\!51}a^{9}+\frac{22\!\cdots\!97}{24\!\cdots\!51}a^{8}-\frac{68\!\cdots\!81}{24\!\cdots\!51}a^{7}-\frac{14\!\cdots\!03}{24\!\cdots\!51}a^{6}-\frac{33\!\cdots\!32}{24\!\cdots\!51}a^{5}+\frac{38\!\cdots\!91}{24\!\cdots\!51}a^{4}+\frac{14\!\cdots\!82}{24\!\cdots\!51}a^{3}+\frac{29\!\cdots\!05}{18\!\cdots\!27}a^{2}+\frac{23\!\cdots\!31}{24\!\cdots\!51}a+\frac{39\!\cdots\!42}{24\!\cdots\!51}$, $\frac{68\!\cdots\!05}{13\!\cdots\!46}a^{15}-\frac{25\!\cdots\!22}{67\!\cdots\!73}a^{14}+\frac{25\!\cdots\!65}{13\!\cdots\!46}a^{13}-\frac{49\!\cdots\!62}{67\!\cdots\!73}a^{12}+\frac{17\!\cdots\!54}{67\!\cdots\!73}a^{11}-\frac{88\!\cdots\!93}{13\!\cdots\!46}a^{10}+\frac{25\!\cdots\!49}{67\!\cdots\!73}a^{9}+\frac{36\!\cdots\!15}{67\!\cdots\!73}a^{8}-\frac{66\!\cdots\!57}{13\!\cdots\!46}a^{7}-\frac{12\!\cdots\!23}{67\!\cdots\!73}a^{6}-\frac{10\!\cdots\!88}{67\!\cdots\!73}a^{5}+\frac{61\!\cdots\!61}{13\!\cdots\!46}a^{4}+\frac{21\!\cdots\!35}{75\!\cdots\!57}a^{3}+\frac{59\!\cdots\!12}{51\!\cdots\!21}a^{2}+\frac{79\!\cdots\!59}{13\!\cdots\!46}a+\frac{17\!\cdots\!83}{13\!\cdots\!46}$, $\frac{10\!\cdots\!73}{13\!\cdots\!46}a^{15}-\frac{75\!\cdots\!63}{13\!\cdots\!46}a^{14}+\frac{38\!\cdots\!33}{13\!\cdots\!46}a^{13}-\frac{72\!\cdots\!31}{67\!\cdots\!73}a^{12}+\frac{53\!\cdots\!63}{13\!\cdots\!46}a^{11}-\frac{15\!\cdots\!21}{13\!\cdots\!46}a^{10}+\frac{87\!\cdots\!89}{67\!\cdots\!73}a^{9}+\frac{62\!\cdots\!39}{13\!\cdots\!46}a^{8}+\frac{91\!\cdots\!19}{13\!\cdots\!46}a^{7}-\frac{49\!\cdots\!66}{67\!\cdots\!73}a^{6}+\frac{41\!\cdots\!19}{13\!\cdots\!46}a^{5}+\frac{13\!\cdots\!35}{13\!\cdots\!46}a^{4}+\frac{46\!\cdots\!91}{75\!\cdots\!57}a^{3}+\frac{93\!\cdots\!29}{10\!\cdots\!42}a^{2}+\frac{10\!\cdots\!43}{13\!\cdots\!46}a-\frac{46\!\cdots\!91}{13\!\cdots\!46}$, $\frac{17\!\cdots\!73}{13\!\cdots\!46}a^{15}-\frac{10\!\cdots\!49}{13\!\cdots\!46}a^{14}+\frac{42\!\cdots\!69}{13\!\cdots\!46}a^{13}-\frac{55\!\cdots\!21}{67\!\cdots\!73}a^{12}+\frac{26\!\cdots\!19}{13\!\cdots\!46}a^{11}+\frac{14\!\cdots\!45}{13\!\cdots\!46}a^{10}-\frac{32\!\cdots\!13}{67\!\cdots\!73}a^{9}+\frac{35\!\cdots\!27}{13\!\cdots\!46}a^{8}-\frac{27\!\cdots\!75}{13\!\cdots\!46}a^{7}-\frac{25\!\cdots\!31}{67\!\cdots\!73}a^{6}-\frac{18\!\cdots\!93}{13\!\cdots\!46}a^{5}+\frac{38\!\cdots\!45}{13\!\cdots\!46}a^{4}+\frac{25\!\cdots\!07}{58\!\cdots\!89}a^{3}+\frac{56\!\cdots\!27}{13\!\cdots\!46}a^{2}+\frac{20\!\cdots\!33}{10\!\cdots\!42}a+\frac{55\!\cdots\!13}{13\!\cdots\!46}$, $\frac{16\!\cdots\!67}{13\!\cdots\!46}a^{15}-\frac{12\!\cdots\!27}{13\!\cdots\!46}a^{14}+\frac{69\!\cdots\!45}{13\!\cdots\!46}a^{13}-\frac{15\!\cdots\!77}{67\!\cdots\!73}a^{12}+\frac{11\!\cdots\!97}{13\!\cdots\!46}a^{11}-\frac{39\!\cdots\!31}{13\!\cdots\!46}a^{10}+\frac{33\!\cdots\!93}{67\!\cdots\!73}a^{9}-\frac{19\!\cdots\!21}{13\!\cdots\!46}a^{8}+\frac{18\!\cdots\!81}{13\!\cdots\!46}a^{7}-\frac{30\!\cdots\!15}{67\!\cdots\!73}a^{6}+\frac{51\!\cdots\!83}{13\!\cdots\!46}a^{5}-\frac{33\!\cdots\!85}{10\!\cdots\!42}a^{4}+\frac{11\!\cdots\!05}{75\!\cdots\!57}a^{3}-\frac{39\!\cdots\!93}{13\!\cdots\!46}a^{2}-\frac{13\!\cdots\!25}{13\!\cdots\!46}a+\frac{48\!\cdots\!43}{13\!\cdots\!46}$ (assuming GRH) | 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: | \( 1288346.89197 \) (assuming GRH) | sage: K.regulator()
gp: K.reg
magma: Regulator(K);
oscar: regulator(K)
|
Class number formula
\[ \begin{aligned}\lim_{s\to 1} (s-1)\zeta_K(s) =\mathstrut & \frac{2^{r_1}\cdot (2\pi)^{r_2}\cdot R\cdot h}{w\cdot\sqrt{|D|}}\cr \approx\mathstrut &\frac{2^{0}\cdot(2\pi)^{8}\cdot 1288346.89197 \cdot 1252}{2\cdot\sqrt{24722989956581301387479701814209}}\cr\approx \mathstrut & 0.393999434016 \end{aligned}\] (assuming GRH)
Galois group
$C_2^2:C_8$ (as 16T24):
A solvable group of order 32 |
The 20 conjugacy class representatives for $C_2^2 : C_8$ |
Character table for $C_2^2 : C_8$ |
Intermediate fields
\(\Q(\sqrt{17}) \), 4.4.4913.1, 4.2.289867.1, 4.2.17051.1, 8.4.1428388920713.1, 8.0.4972221833001953.2, 8.4.84022877689.1 |
Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.
Sibling fields
Galois closure: | deg 32 |
Degree 16 sibling: | 16.8.2040294908815649000428369.1 |
Minimal sibling: | 16.8.2040294908815649000428369.1 |
Frobenius cycle types
$p$ | $2$ | $3$ | $5$ | $7$ | $11$ | $13$ | $17$ | $19$ | $23$ | $29$ | $31$ | $37$ | $41$ | $43$ | $47$ | $53$ | $59$ |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cycle type | ${\href{/padicField/2.4.0.1}{4} }^{4}$ | ${\href{/padicField/3.8.0.1}{8} }^{2}$ | ${\href{/padicField/5.8.0.1}{8} }^{2}$ | ${\href{/padicField/7.8.0.1}{8} }^{2}$ | ${\href{/padicField/11.8.0.1}{8} }^{2}$ | ${\href{/padicField/13.2.0.1}{2} }^{4}{,}\,{\href{/padicField/13.1.0.1}{1} }^{8}$ | R | ${\href{/padicField/19.4.0.1}{4} }^{4}$ | ${\href{/padicField/23.8.0.1}{8} }^{2}$ | ${\href{/padicField/29.8.0.1}{8} }^{2}$ | ${\href{/padicField/31.8.0.1}{8} }^{2}$ | ${\href{/padicField/37.8.0.1}{8} }^{2}$ | ${\href{/padicField/41.8.0.1}{8} }^{2}$ | ${\href{/padicField/43.4.0.1}{4} }^{4}$ | ${\href{/padicField/47.2.0.1}{2} }^{4}{,}\,{\href{/padicField/47.1.0.1}{1} }^{8}$ | ${\href{/padicField/53.4.0.1}{4} }^{4}$ | R |
In the table, R denotes a ramified prime. Cycle lengths which are repeated in a cycle type are indicated by exponents.
Local algebras for ramified primes
$p$ | Label | Polynomial | $e$ | $f$ | $c$ | Galois group | Slope content |
---|---|---|---|---|---|---|---|
\(17\) | 17.16.14.1 | $x^{16} + 128 x^{15} + 7192 x^{14} + 232064 x^{13} + 4716796 x^{12} + 62185088 x^{11} + 525781480 x^{10} + 2696730752 x^{9} + 7365142088 x^{8} + 8090194432 x^{7} + 4732152320 x^{6} + 1682759680 x^{5} + 456414056 x^{4} + 996830464 x^{3} + 7439529968 x^{2} + 33582546688 x + 66368009604$ | $8$ | $2$ | $14$ | $C_8\times C_2$ | $[\ ]_{8}^{2}$ |
\(59\) | 59.4.2.2 | $x^{4} - 13924 x^{3} - 56674102 x^{2} - 11222744 x + 6962$ | $2$ | $2$ | $2$ | $C_4$ | $[\ ]_{2}^{2}$ |
59.4.2.2 | $x^{4} - 13924 x^{3} - 56674102 x^{2} - 11222744 x + 6962$ | $2$ | $2$ | $2$ | $C_4$ | $[\ ]_{2}^{2}$ | |
59.8.4.1 | $x^{8} + 240 x^{6} + 80 x^{5} + 21130 x^{4} - 9280 x^{3} + 808256 x^{2} - 825840 x + 11417625$ | $2$ | $4$ | $4$ | $C_4\times C_2$ | $[\ ]_{2}^{4}$ |