How to concatenate list of integers into a single number












7












$begingroup$


Is there a way to concatenate the elements of a list into ONE number?



For example, if there is a list L={13,5,8,0}, then I am looking for a way to append 13, 5, 8 and 0 to produce the result 13580.










share|improve this question











$endgroup$

















    7












    $begingroup$


    Is there a way to concatenate the elements of a list into ONE number?



    For example, if there is a list L={13,5,8,0}, then I am looking for a way to append 13, 5, 8 and 0 to produce the result 13580.










    share|improve this question











    $endgroup$















      7












      7








      7


      1



      $begingroup$


      Is there a way to concatenate the elements of a list into ONE number?



      For example, if there is a list L={13,5,8,0}, then I am looking for a way to append 13, 5, 8 and 0 to produce the result 13580.










      share|improve this question











      $endgroup$




      Is there a way to concatenate the elements of a list into ONE number?



      For example, if there is a list L={13,5,8,0}, then I am looking for a way to append 13, 5, 8 and 0 to produce the result 13580.







      list-manipulation






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Jan 20 at 0:03









      Lukas Lang

      6,7651930




      6,7651930










      asked Jan 19 at 5:12









      SreekzSreekz

      384




      384






















          3 Answers
          3






          active

          oldest

          votes


















          8












          $begingroup$

          You can convert the list numbers to strings, then join and finally convert back to number:



          L = {13, 5, 8, 0};

          ToExpression[StringJoin[ToString /@ L]]
          (* 13580 *)





          share|improve this answer









          $endgroup$





















            10












            $begingroup$

            FromDigits @ StringJoin @ IntegerString @ L



            13580




            FromDigits @ StringJoin @ IntegerString @ {13, 5, 38, 13}



            1353813







            share|improve this answer









            $endgroup$





















              8












              $begingroup$

              Or FromDigits:



              FromDigits[{13, 5, 8, 0}]

              13580





              share|improve this answer









              $endgroup$









              • 2




                $begingroup$
                (+1) you will need something like FromDigits[Flatten@IntegerDigits@L] to cover cases like L={1, 13, 5, 8, 0}.
                $endgroup$
                – kglr
                Jan 19 at 5:33










              • $begingroup$
                @kglr 's comment, and answer, show the proper way to use IntegerDigits. Please see those.
                $endgroup$
                – Rabbit
                Jan 19 at 6:13











              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: "387"
              };
              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: false,
              noModals: true,
              showLowRepImageUploadWarning: true,
              reputationToPostImages: null,
              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
              },
              onDemand: true,
              discardSelector: ".discard-answer"
              ,immediatelyShowMarkdownHelp:true
              });


              }
              });














              draft saved

              draft discarded


















              StackExchange.ready(
              function () {
              StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmathematica.stackexchange.com%2fquestions%2f189814%2fhow-to-concatenate-list-of-integers-into-a-single-number%23new-answer', 'question_page');
              }
              );

              Post as a guest















              Required, but never shown

























              3 Answers
              3






              active

              oldest

              votes








              3 Answers
              3






              active

              oldest

              votes









              active

              oldest

              votes






              active

              oldest

              votes









              8












              $begingroup$

              You can convert the list numbers to strings, then join and finally convert back to number:



              L = {13, 5, 8, 0};

              ToExpression[StringJoin[ToString /@ L]]
              (* 13580 *)





              share|improve this answer









              $endgroup$


















                8












                $begingroup$

                You can convert the list numbers to strings, then join and finally convert back to number:



                L = {13, 5, 8, 0};

                ToExpression[StringJoin[ToString /@ L]]
                (* 13580 *)





                share|improve this answer









                $endgroup$
















                  8












                  8








                  8





                  $begingroup$

                  You can convert the list numbers to strings, then join and finally convert back to number:



                  L = {13, 5, 8, 0};

                  ToExpression[StringJoin[ToString /@ L]]
                  (* 13580 *)





                  share|improve this answer









                  $endgroup$



                  You can convert the list numbers to strings, then join and finally convert back to number:



                  L = {13, 5, 8, 0};

                  ToExpression[StringJoin[ToString /@ L]]
                  (* 13580 *)






                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Jan 19 at 5:19









                  m0nhawkm0nhawk

                  2,78711532




                  2,78711532























                      10












                      $begingroup$

                      FromDigits @ StringJoin @ IntegerString @ L



                      13580




                      FromDigits @ StringJoin @ IntegerString @ {13, 5, 38, 13}



                      1353813







                      share|improve this answer









                      $endgroup$


















                        10












                        $begingroup$

                        FromDigits @ StringJoin @ IntegerString @ L



                        13580




                        FromDigits @ StringJoin @ IntegerString @ {13, 5, 38, 13}



                        1353813







                        share|improve this answer









                        $endgroup$
















                          10












                          10








                          10





                          $begingroup$

                          FromDigits @ StringJoin @ IntegerString @ L



                          13580




                          FromDigits @ StringJoin @ IntegerString @ {13, 5, 38, 13}



                          1353813







                          share|improve this answer









                          $endgroup$



                          FromDigits @ StringJoin @ IntegerString @ L



                          13580




                          FromDigits @ StringJoin @ IntegerString @ {13, 5, 38, 13}



                          1353813








                          share|improve this answer












                          share|improve this answer



                          share|improve this answer










                          answered Jan 19 at 5:39









                          kglrkglr

                          183k10202418




                          183k10202418























                              8












                              $begingroup$

                              Or FromDigits:



                              FromDigits[{13, 5, 8, 0}]

                              13580





                              share|improve this answer









                              $endgroup$









                              • 2




                                $begingroup$
                                (+1) you will need something like FromDigits[Flatten@IntegerDigits@L] to cover cases like L={1, 13, 5, 8, 0}.
                                $endgroup$
                                – kglr
                                Jan 19 at 5:33










                              • $begingroup$
                                @kglr 's comment, and answer, show the proper way to use IntegerDigits. Please see those.
                                $endgroup$
                                – Rabbit
                                Jan 19 at 6:13
















                              8












                              $begingroup$

                              Or FromDigits:



                              FromDigits[{13, 5, 8, 0}]

                              13580





                              share|improve this answer









                              $endgroup$









                              • 2




                                $begingroup$
                                (+1) you will need something like FromDigits[Flatten@IntegerDigits@L] to cover cases like L={1, 13, 5, 8, 0}.
                                $endgroup$
                                – kglr
                                Jan 19 at 5:33










                              • $begingroup$
                                @kglr 's comment, and answer, show the proper way to use IntegerDigits. Please see those.
                                $endgroup$
                                – Rabbit
                                Jan 19 at 6:13














                              8












                              8








                              8





                              $begingroup$

                              Or FromDigits:



                              FromDigits[{13, 5, 8, 0}]

                              13580





                              share|improve this answer









                              $endgroup$



                              Or FromDigits:



                              FromDigits[{13, 5, 8, 0}]

                              13580






                              share|improve this answer












                              share|improve this answer



                              share|improve this answer










                              answered Jan 19 at 5:27









                              RabbitRabbit

                              387139




                              387139








                              • 2




                                $begingroup$
                                (+1) you will need something like FromDigits[Flatten@IntegerDigits@L] to cover cases like L={1, 13, 5, 8, 0}.
                                $endgroup$
                                – kglr
                                Jan 19 at 5:33










                              • $begingroup$
                                @kglr 's comment, and answer, show the proper way to use IntegerDigits. Please see those.
                                $endgroup$
                                – Rabbit
                                Jan 19 at 6:13














                              • 2




                                $begingroup$
                                (+1) you will need something like FromDigits[Flatten@IntegerDigits@L] to cover cases like L={1, 13, 5, 8, 0}.
                                $endgroup$
                                – kglr
                                Jan 19 at 5:33










                              • $begingroup$
                                @kglr 's comment, and answer, show the proper way to use IntegerDigits. Please see those.
                                $endgroup$
                                – Rabbit
                                Jan 19 at 6:13








                              2




                              2




                              $begingroup$
                              (+1) you will need something like FromDigits[Flatten@IntegerDigits@L] to cover cases like L={1, 13, 5, 8, 0}.
                              $endgroup$
                              – kglr
                              Jan 19 at 5:33




                              $begingroup$
                              (+1) you will need something like FromDigits[Flatten@IntegerDigits@L] to cover cases like L={1, 13, 5, 8, 0}.
                              $endgroup$
                              – kglr
                              Jan 19 at 5:33












                              $begingroup$
                              @kglr 's comment, and answer, show the proper way to use IntegerDigits. Please see those.
                              $endgroup$
                              – Rabbit
                              Jan 19 at 6:13




                              $begingroup$
                              @kglr 's comment, and answer, show the proper way to use IntegerDigits. Please see those.
                              $endgroup$
                              – Rabbit
                              Jan 19 at 6:13


















                              draft saved

                              draft discarded




















































                              Thanks for contributing an answer to Mathematica 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.




                              draft saved


                              draft discarded














                              StackExchange.ready(
                              function () {
                              StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmathematica.stackexchange.com%2fquestions%2f189814%2fhow-to-concatenate-list-of-integers-into-a-single-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

                              Mario Kart Wii

                              The Binding of Isaac: Rebirth/Afterbirth

                              What does “Dominus providebit” mean?