Normalized defining polynomial
\( x^{16} - 288 x^{13} + 1492 x^{12} - 4512 x^{11} + 31344 x^{10} - 146976 x^{9} + 883002 x^{8} + \cdots + 281522905 \)
Invariants
| Degree: | $16$ |
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| Signature: | $(0, 8)$ |
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| Discriminant: |
\(1509221451981748002510926376155643641856\)
\(\medspace = 2^{58}\cdot 3^{10}\cdot 11^{10}\cdot 43^{4}\)
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| Root discriminant: | \(280.98\) |
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| Galois root discriminant: | $2^{31/8}3^{3/4}11^{3/4}43^{1/2}\approx 1324.6798063293725$ | ||
| Ramified primes: |
\(2\), \(3\), \(11\), \(43\)
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| Discriminant root field: | \(\Q\) | ||
| $\Aut(K/\Q)$: | $C_2$ |
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| This field is not Galois over $\Q$. | |||
| This is a CM field. | |||
| Reflex fields: | unavailable$^{128}$ | ||
Integral basis (with respect to field generator \(a\))
$1$, $a$, $a^{2}$, $a^{3}$, $a^{4}$, $a^{5}$, $a^{6}$, $a^{7}$, $\frac{1}{8}a^{8}-\frac{1}{2}a^{6}-\frac{1}{4}a^{4}-\frac{1}{2}a^{2}-\frac{1}{8}$, $\frac{1}{8}a^{9}-\frac{1}{2}a^{7}-\frac{1}{4}a^{5}-\frac{1}{2}a^{3}-\frac{1}{8}a$, $\frac{1}{8}a^{10}-\frac{1}{4}a^{6}-\frac{1}{2}a^{4}-\frac{1}{8}a^{2}-\frac{1}{2}$, $\frac{1}{16}a^{11}-\frac{1}{16}a^{10}-\frac{1}{16}a^{9}-\frac{1}{16}a^{8}+\frac{1}{8}a^{7}+\frac{3}{8}a^{6}-\frac{1}{8}a^{5}+\frac{3}{8}a^{4}-\frac{5}{16}a^{3}-\frac{3}{16}a^{2}-\frac{3}{16}a+\frac{5}{16}$, $\frac{1}{48}a^{12}+\frac{1}{48}a^{11}-\frac{1}{48}a^{10}-\frac{1}{48}a^{9}+\frac{1}{24}a^{7}+\frac{11}{24}a^{6}-\frac{1}{24}a^{5}+\frac{5}{16}a^{4}-\frac{5}{48}a^{3}+\frac{5}{48}a^{2}-\frac{19}{48}a-\frac{7}{24}$, $\frac{1}{48}a^{13}+\frac{1}{48}a^{11}-\frac{1}{16}a^{10}-\frac{1}{24}a^{9}-\frac{1}{48}a^{8}-\frac{11}{24}a^{7}-\frac{1}{8}a^{6}+\frac{11}{48}a^{5}-\frac{1}{24}a^{4}-\frac{5}{48}a^{3}+\frac{5}{16}a^{2}-\frac{1}{12}a-\frac{19}{48}$, $\frac{1}{4560}a^{14}+\frac{37}{4560}a^{13}-\frac{7}{2280}a^{12}-\frac{107}{4560}a^{11}-\frac{11}{456}a^{10}-\frac{13}{380}a^{9}-\frac{233}{4560}a^{8}-\frac{467}{2280}a^{7}+\frac{1043}{4560}a^{6}-\frac{103}{1520}a^{5}+\frac{359}{1140}a^{4}-\frac{397}{912}a^{3}+\frac{71}{285}a^{2}+\frac{167}{2280}a-\frac{17}{48}$, $\frac{1}{86\cdots 80}a^{15}+\frac{48\cdots 71}{86\cdots 80}a^{14}-\frac{47\cdots 71}{86\cdots 80}a^{13}+\frac{15\cdots 57}{86\cdots 80}a^{12}-\frac{63\cdots 49}{43\cdots 40}a^{11}+\frac{34\cdots 57}{43\cdots 40}a^{10}-\frac{59\cdots 47}{14\cdots 80}a^{9}+\frac{95\cdots 77}{43\cdots 40}a^{8}-\frac{72\cdots 53}{86\cdots 80}a^{7}-\frac{14\cdots 07}{86\cdots 80}a^{6}-\frac{16\cdots 91}{57\cdots 52}a^{5}+\frac{14\cdots 39}{86\cdots 80}a^{4}+\frac{15\cdots 37}{38\cdots 60}a^{3}-\frac{86\cdots 81}{72\cdots 40}a^{2}+\frac{64\cdots 79}{21\cdots 20}a+\frac{12\cdots 02}{57\cdots 39}$
| Monogenic: | Not computed | |
| Index: | $1$ | |
| Inessential primes: | None |
Class group and class number
| Ideal class group: | $C_{2}\times C_{2}\times C_{2}\times C_{2}\times C_{30516}$, which has order $488256$ (assuming GRH) |
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| Narrow class group: | $C_{2}\times C_{2}\times C_{2}\times C_{2}\times C_{30516}$, which has order $488256$ (assuming GRH) |
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| Relative class number: | $122064$ (assuming GRH) |
Unit group
| Rank: | $7$ |
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| Torsion generator: |
\( -1 \)
(order $2$)
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| Fundamental units: |
$\frac{38\cdots 49}{16\cdots 20}a^{15}-\frac{21\cdots 31}{19\cdots 40}a^{14}+\frac{11\cdots 17}{99\cdots 20}a^{13}-\frac{11\cdots 43}{19\cdots 40}a^{12}+\frac{51\cdots 31}{83\cdots 10}a^{11}-\frac{20\cdots 91}{66\cdots 80}a^{10}+\frac{37\cdots 73}{33\cdots 40}a^{9}-\frac{15\cdots 93}{34\cdots 20}a^{8}+\frac{51\cdots 91}{16\cdots 20}a^{7}-\frac{47\cdots 19}{34\cdots 20}a^{6}+\frac{74\cdots 31}{33\cdots 40}a^{5}-\frac{30\cdots 69}{66\cdots 80}a^{4}-\frac{18\cdots 19}{41\cdots 05}a^{3}+\frac{40\cdots 71}{39\cdots 08}a^{2}+\frac{20\cdots 11}{99\cdots 20}a+\frac{16\cdots 17}{20\cdots 32}$, $\frac{14\cdots 77}{16\cdots 20}a^{15}+\frac{43\cdots 27}{19\cdots 40}a^{14}+\frac{40\cdots 51}{99\cdots 20}a^{13}-\frac{48\cdots 49}{19\cdots 40}a^{12}+\frac{27\cdots 59}{41\cdots 05}a^{11}-\frac{12\cdots 53}{66\cdots 80}a^{10}+\frac{71\cdots 39}{33\cdots 40}a^{9}-\frac{25\cdots 39}{34\cdots 20}a^{8}+\frac{94\cdots 23}{16\cdots 20}a^{7}-\frac{22\cdots 57}{34\cdots 20}a^{6}+\frac{48\cdots 53}{33\cdots 40}a^{5}-\frac{10\cdots 07}{66\cdots 80}a^{4}-\frac{88\cdots 89}{83\cdots 10}a^{3}-\frac{21\cdots 91}{39\cdots 08}a^{2}-\frac{15\cdots 27}{99\cdots 20}a-\frac{23\cdots 09}{20\cdots 32}$, $\frac{56\cdots 91}{49\cdots 60}a^{15}-\frac{19\cdots 61}{24\cdots 30}a^{14}+\frac{23\cdots 49}{24\cdots 30}a^{13}-\frac{47\cdots 47}{16\cdots 20}a^{12}+\frac{30\cdots 31}{16\cdots 20}a^{11}-\frac{31\cdots 69}{33\cdots 40}a^{10}+\frac{63\cdots 07}{16\cdots 20}a^{9}-\frac{29\cdots 27}{17\cdots 60}a^{8}+\frac{17\cdots 33}{16\cdots 20}a^{7}-\frac{32\cdots 53}{87\cdots 80}a^{6}+\frac{28\cdots 36}{41\cdots 05}a^{5}-\frac{65\cdots 59}{83\cdots 10}a^{4}-\frac{46\cdots 39}{49\cdots 60}a^{3}+\frac{94\cdots 39}{19\cdots 04}a^{2}-\frac{86\cdots 41}{49\cdots 60}a-\frac{13\cdots 61}{34\cdots 72}$, $\frac{88\cdots 59}{14\cdots 80}a^{15}-\frac{91\cdots 83}{45\cdots 20}a^{14}+\frac{13\cdots 11}{21\cdots 20}a^{13}-\frac{13\cdots 43}{86\cdots 80}a^{12}+\frac{41\cdots 97}{28\cdots 76}a^{11}-\frac{89\cdots 57}{15\cdots 40}a^{10}+\frac{18\cdots 49}{72\cdots 40}a^{9}-\frac{33\cdots 97}{28\cdots 60}a^{8}+\frac{99\cdots 67}{14\cdots 80}a^{7}-\frac{76\cdots 87}{28\cdots 60}a^{6}+\frac{34\cdots 97}{72\cdots 40}a^{5}-\frac{20\cdots 21}{57\cdots 52}a^{4}-\frac{85\cdots 11}{14\cdots 80}a^{3}+\frac{12\cdots 71}{86\cdots 80}a^{2}+\frac{57\cdots 39}{43\cdots 64}a-\frac{31\cdots 53}{91\cdots 24}$, $\frac{49\cdots 03}{54\cdots 05}a^{15}+\frac{14\cdots 87}{21\cdots 20}a^{14}-\frac{74\cdots 19}{72\cdots 40}a^{13}-\frac{11\cdots 77}{43\cdots 40}a^{12}+\frac{96\cdots 23}{72\cdots 40}a^{11}-\frac{67\cdots 81}{18\cdots 35}a^{10}+\frac{18\cdots 27}{72\cdots 40}a^{9}-\frac{17\cdots 53}{14\cdots 80}a^{8}+\frac{26\cdots 39}{36\cdots 70}a^{7}-\frac{13\cdots 33}{72\cdots 40}a^{6}+\frac{34\cdots 81}{14\cdots 88}a^{5}-\frac{19\cdots 23}{14\cdots 80}a^{4}+\frac{50\cdots 87}{21\cdots 20}a^{3}-\frac{26\cdots 63}{57\cdots 90}a^{2}-\frac{85\cdots 41}{72\cdots 40}a+\frac{21\cdots 51}{45\cdots 12}$, $\frac{17\cdots 53}{10\cdots 10}a^{15}-\frac{39\cdots 27}{72\cdots 40}a^{14}+\frac{91\cdots 73}{43\cdots 64}a^{13}-\frac{38\cdots 37}{91\cdots 24}a^{12}+\frac{55\cdots 69}{14\cdots 80}a^{11}-\frac{23\cdots 49}{14\cdots 80}a^{10}+\frac{48\cdots 21}{72\cdots 94}a^{9}-\frac{17\cdots 69}{57\cdots 52}a^{8}+\frac{26\cdots 13}{14\cdots 88}a^{7}-\frac{13\cdots 19}{18\cdots 35}a^{6}+\frac{94\cdots 51}{72\cdots 40}a^{5}-\frac{24\cdots 69}{28\cdots 60}a^{4}-\frac{88\cdots 63}{43\cdots 40}a^{3}+\frac{55\cdots 89}{14\cdots 80}a^{2}+\frac{52\cdots 49}{10\cdots 10}a-\frac{44\cdots 49}{91\cdots 24}$, $\frac{14\cdots 31}{43\cdots 40}a^{15}-\frac{59\cdots 69}{57\cdots 52}a^{14}-\frac{83\cdots 19}{21\cdots 20}a^{13}-\frac{67\cdots 43}{86\cdots 80}a^{12}+\frac{10\cdots 83}{14\cdots 80}a^{11}-\frac{46\cdots 19}{28\cdots 60}a^{10}+\frac{41\cdots 49}{72\cdots 40}a^{9}-\frac{85\cdots 27}{28\cdots 60}a^{8}+\frac{77\cdots 77}{14\cdots 80}a^{7}-\frac{57\cdots 17}{57\cdots 52}a^{6}+\frac{21\cdots 19}{72\cdots 40}a^{5}-\frac{46\cdots 93}{28\cdots 60}a^{4}-\frac{13\cdots 39}{43\cdots 40}a^{3}+\frac{12\cdots 13}{28\cdots 60}a^{2}+\frac{22\cdots 11}{21\cdots 20}a-\frac{53\cdots 63}{91\cdots 24}$
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| Regulator: | \( 64598388.8936 \) (assuming GRH) |
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Class number formula
\[ \begin{aligned}\lim_{s\to 1} (s-1)\zeta_K(s) =\mathstrut & \frac{2^{r_1}\cdot (2\pi)^{r_2}\cdot R\cdot h}{w\cdot\sqrt{|D|}}\cr \approx\mathstrut &\frac{2^{0}\cdot(2\pi)^{8}\cdot 64598388.8936 \cdot 488256}{2\cdot\sqrt{1509221451981748002510926376155643641856}}\cr\approx \mathstrut & 0.98605636758 \end{aligned}\] (assuming GRH)
Galois group
$C_2^6.(C_2\times D_4)$ (as 16T1143):
| A solvable group of order 1024 |
| The 58 conjugacy class representatives for $C_2^6.(C_2\times D_4)$ |
| Character table for $C_2^6.(C_2\times D_4)$ |
Intermediate fields
| \(\Q(\sqrt{66}) \), \(\Q(\sqrt{11}) \), \(\Q(\sqrt{6}) \), \(\Q(\sqrt{6}, \sqrt{11})\), 8.8.36788541182705664.1 |
Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.
Sibling fields
| Degree 16 siblings: | data not computed |
| Degree 32 siblings: | data not computed |
| Minimal sibling: | 16.0.222220411196339044718009575937465647104.1 |
Frobenius cycle types
| $p$ | $2$ | $3$ | $5$ | $7$ | $11$ | $13$ | $17$ | $19$ | $23$ | $29$ | $31$ | $37$ | $41$ | $43$ | $47$ | $53$ | $59$ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cycle type | R | R | ${\href{/padicField/5.4.0.1}{4} }{,}\,{\href{/padicField/5.2.0.1}{2} }^{5}{,}\,{\href{/padicField/5.1.0.1}{1} }^{2}$ | ${\href{/padicField/7.4.0.1}{4} }^{2}{,}\,{\href{/padicField/7.2.0.1}{2} }^{4}$ | R | ${\href{/padicField/13.4.0.1}{4} }^{2}{,}\,{\href{/padicField/13.2.0.1}{2} }^{4}$ | ${\href{/padicField/17.4.0.1}{4} }^{4}$ | ${\href{/padicField/19.4.0.1}{4} }{,}\,{\href{/padicField/19.2.0.1}{2} }^{3}{,}\,{\href{/padicField/19.1.0.1}{1} }^{6}$ | ${\href{/padicField/23.8.0.1}{8} }^{2}$ | ${\href{/padicField/29.4.0.1}{4} }^{4}$ | ${\href{/padicField/31.4.0.1}{4} }^{4}$ | ${\href{/padicField/37.4.0.1}{4} }^{4}$ | ${\href{/padicField/41.4.0.1}{4} }^{4}$ | R | ${\href{/padicField/47.8.0.1}{8} }^{2}$ | ${\href{/padicField/53.4.0.1}{4} }{,}\,{\href{/padicField/53.2.0.1}{2} }^{3}{,}\,{\href{/padicField/53.1.0.1}{1} }^{6}$ | ${\href{/padicField/59.4.0.1}{4} }^{2}{,}\,{\href{/padicField/59.2.0.1}{2} }^{4}$ |
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 |
|---|---|---|---|---|---|---|---|
|
\(2\)
| 2.1.16.58n1.779 | $x^{16} + 8 x^{15} + 8 x^{14} + 4 x^{12} + 8 x^{11} + 2 x^{8} + 8 x^{6} + 20 x^{4} + 16 x^{3} + 8 x^{2} + 16 x + 14$ | $16$ | $1$ | $58$ | 16T333 | $$[2, 3, 3, \frac{7}{2}, 4, \frac{17}{4}]^{2}$$ |
|
\(3\)
| 3.4.2.4a1.2 | $x^{8} + 4 x^{7} + 4 x^{6} + 4 x^{4} + 8 x^{3} + 7$ | $2$ | $4$ | $4$ | $C_4\times C_2$ | $$[\ ]_{2}^{4}$$ |
| 3.2.4.6a1.3 | $x^{8} + 8 x^{7} + 32 x^{6} + 80 x^{5} + 136 x^{4} + 160 x^{3} + 128 x^{2} + 67 x + 19$ | $4$ | $2$ | $6$ | $Q_8$ | $$[\ ]_{4}^{2}$$ | |
|
\(11\)
| 11.2.2.2a1.2 | $x^{4} + 14 x^{3} + 53 x^{2} + 28 x + 15$ | $2$ | $2$ | $2$ | $C_2^2$ | $$[\ ]_{2}^{2}$$ |
| 11.2.2.2a1.2 | $x^{4} + 14 x^{3} + 53 x^{2} + 28 x + 15$ | $2$ | $2$ | $2$ | $C_2^2$ | $$[\ ]_{2}^{2}$$ | |
| 11.2.4.6a1.2 | $x^{8} + 28 x^{7} + 302 x^{6} + 1540 x^{5} + 3601 x^{4} + 3080 x^{3} + 1208 x^{2} + 224 x + 27$ | $4$ | $2$ | $6$ | $D_4$ | $$[\ ]_{4}^{2}$$ | |
|
\(43\)
| $\Q_{43}$ | $x + 40$ | $1$ | $1$ | $0$ | Trivial | $$[\ ]$$ |
| $\Q_{43}$ | $x + 40$ | $1$ | $1$ | $0$ | Trivial | $$[\ ]$$ | |
| 43.1.2.1a1.2 | $x^{2} + 129$ | $2$ | $1$ | $1$ | $C_2$ | $$[\ ]_{2}$$ | |
| 43.2.1.0a1.1 | $x^{2} + 42 x + 3$ | $1$ | $2$ | $0$ | $C_2$ | $$[\ ]^{2}$$ | |
| 43.1.2.1a1.2 | $x^{2} + 129$ | $2$ | $1$ | $1$ | $C_2$ | $$[\ ]_{2}$$ | |
| 43.2.2.2a1.2 | $x^{4} + 84 x^{3} + 1770 x^{2} + 252 x + 52$ | $2$ | $2$ | $2$ | $C_2^2$ | $$[\ ]_{2}^{2}$$ | |
| 43.4.1.0a1.1 | $x^{4} + 5 x^{2} + 42 x + 3$ | $1$ | $4$ | $0$ | $C_4$ | $$[\ ]^{4}$$ |