summation of floor function involving prime number












0














Can you give me some hints on solving following summation. Is there any theory concerning the following summation?



$p$ is a prime number > 2



$$sum_{s=2}^{p-1}left(leftlfloorfrac{p}{s}rightrfloor sright)$$



I tried to apply the following formula



$$leftlfloor frac{x}{y}rightrfloor = frac{x - (xmod{y})}{y}.$$



But it does not get me anything useful.



Thanks in Advance.










share|cite|improve this question





























    0














    Can you give me some hints on solving following summation. Is there any theory concerning the following summation?



    $p$ is a prime number > 2



    $$sum_{s=2}^{p-1}left(leftlfloorfrac{p}{s}rightrfloor sright)$$



    I tried to apply the following formula



    $$leftlfloor frac{x}{y}rightrfloor = frac{x - (xmod{y})}{y}.$$



    But it does not get me anything useful.



    Thanks in Advance.










    share|cite|improve this question



























      0












      0








      0


      3





      Can you give me some hints on solving following summation. Is there any theory concerning the following summation?



      $p$ is a prime number > 2



      $$sum_{s=2}^{p-1}left(leftlfloorfrac{p}{s}rightrfloor sright)$$



      I tried to apply the following formula



      $$leftlfloor frac{x}{y}rightrfloor = frac{x - (xmod{y})}{y}.$$



      But it does not get me anything useful.



      Thanks in Advance.










      share|cite|improve this question















      Can you give me some hints on solving following summation. Is there any theory concerning the following summation?



      $p$ is a prime number > 2



      $$sum_{s=2}^{p-1}left(leftlfloorfrac{p}{s}rightrfloor sright)$$



      I tried to apply the following formula



      $$leftlfloor frac{x}{y}rightrfloor = frac{x - (xmod{y})}{y}.$$



      But it does not get me anything useful.



      Thanks in Advance.







      number-theory prime-numbers floor-function






      share|cite|improve this question















      share|cite|improve this question













      share|cite|improve this question




      share|cite|improve this question








      edited Nov 22 '18 at 12:23









      amWhy

      192k28225439




      192k28225439










      asked Nov 22 '18 at 12:04









      srinivasu u

      1012




      1012






















          0






          active

          oldest

          votes











          Your Answer





          StackExchange.ifUsing("editor", function () {
          return StackExchange.using("mathjaxEditing", function () {
          StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
          StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
          });
          });
          }, "mathjax-editing");

          StackExchange.ready(function() {
          var channelOptions = {
          tags: "".split(" "),
          id: "69"
          };
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function() {
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled) {
          StackExchange.using("snippets", function() {
          createEditor();
          });
          }
          else {
          createEditor();
          }
          });

          function createEditor() {
          StackExchange.prepareEditor({
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: true,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: 10,
          bindNavPrevention: true,
          postfix: "",
          imageUploader: {
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          },
          noCode: true, onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          });


          }
          });














          draft saved

          draft discarded


















          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3009051%2fsummation-of-floor-function-involving-prime-number%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown

























          0






          active

          oldest

          votes








          0






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes
















          draft saved

          draft discarded




















































          Thanks for contributing an answer to Mathematics Stack Exchange!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          Use MathJax to format equations. MathJax reference.


          To learn more, see our tips on writing great answers.





          Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


          Please pay close attention to the following guidance:


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3009051%2fsummation-of-floor-function-involving-prime-number%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          Popular posts from this blog

          How to change which sound is reproduced for terminal bell?

          Title Spacing in Bjornstrup Chapter, Removing Chapter Number From Contents

          Can I use Tabulator js library in my java Spring + Thymeleaf project?