Properties

Label 2-840-1.1-c1-0-6
Degree $2$
Conductor $840$
Sign $1$
Analytic cond. $6.70743$
Root an. cond. $2.58987$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 3-s + 5-s + 7-s + 9-s − 5.65·11-s + 2·13-s + 15-s + 7.65·17-s + 5.65·19-s + 21-s + 5.65·23-s + 25-s + 27-s − 7.65·29-s + 4·31-s − 5.65·33-s + 35-s + 0.343·37-s + 2·39-s + 2·41-s − 9.65·43-s + 45-s − 13.6·47-s + 49-s + 7.65·51-s + 7.65·53-s − 5.65·55-s + ⋯
L(s)  = 1  + 0.577·3-s + 0.447·5-s + 0.377·7-s + 0.333·9-s − 1.70·11-s + 0.554·13-s + 0.258·15-s + 1.85·17-s + 1.29·19-s + 0.218·21-s + 1.17·23-s + 0.200·25-s + 0.192·27-s − 1.42·29-s + 0.718·31-s − 0.984·33-s + 0.169·35-s + 0.0564·37-s + 0.320·39-s + 0.312·41-s − 1.47·43-s + 0.149·45-s − 1.99·47-s + 0.142·49-s + 1.07·51-s + 1.05·53-s − 0.762·55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 840 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 840 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(840\)    =    \(2^{3} \cdot 3 \cdot 5 \cdot 7\)
Sign: $1$
Analytic conductor: \(6.70743\)
Root analytic conductor: \(2.58987\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 840,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(2.152705508\)
\(L(\frac12)\) \(\approx\) \(2.152705508\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 - T \)
5 \( 1 - T \)
7 \( 1 - T \)
good11 \( 1 + 5.65T + 11T^{2} \)
13 \( 1 - 2T + 13T^{2} \)
17 \( 1 - 7.65T + 17T^{2} \)
19 \( 1 - 5.65T + 19T^{2} \)
23 \( 1 - 5.65T + 23T^{2} \)
29 \( 1 + 7.65T + 29T^{2} \)
31 \( 1 - 4T + 31T^{2} \)
37 \( 1 - 0.343T + 37T^{2} \)
41 \( 1 - 2T + 41T^{2} \)
43 \( 1 + 9.65T + 43T^{2} \)
47 \( 1 + 13.6T + 47T^{2} \)
53 \( 1 - 7.65T + 53T^{2} \)
59 \( 1 + 4T + 59T^{2} \)
61 \( 1 - 11.6T + 61T^{2} \)
67 \( 1 - 1.65T + 67T^{2} \)
71 \( 1 - 15.3T + 71T^{2} \)
73 \( 1 - 6T + 73T^{2} \)
79 \( 1 + 11.3T + 79T^{2} \)
83 \( 1 + 4T + 83T^{2} \)
89 \( 1 + 14T + 89T^{2} \)
97 \( 1 - 6T + 97T^{2} \)
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   \(L(s) = \displaystyle\prod_p \ \prod_{j=1}^{2} (1 - \alpha_{j,p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−10.01554870998532599790967156885, −9.544709100434793646921321311081, −8.291530514995535253565657600115, −7.85655760809085391360077214915, −6.94551819290591796102252533663, −5.46214366715280708381153673448, −5.17722853416948962235825545177, −3.52239563815426301983598487010, −2.73268581061183372205264944327, −1.31914919422026613728919459094, 1.31914919422026613728919459094, 2.73268581061183372205264944327, 3.52239563815426301983598487010, 5.17722853416948962235825545177, 5.46214366715280708381153673448, 6.94551819290591796102252533663, 7.85655760809085391360077214915, 8.291530514995535253565657600115, 9.544709100434793646921321311081, 10.01554870998532599790967156885

Graph of the $Z$-function along the critical line