How to concatenate list of integers into a single number












7












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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





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              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


















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