How to concatenate list of integers into a single number












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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.






list-manipulation







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    5












    $begingroup$


    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.






    list-manipulation







    share|improve this question









    New contributor




    Sreekz is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.







    $endgroup$















      5












      5








      5


      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.






      list-manipulation







      share|improve this question









      New contributor




      Sreekz is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.







      $endgroup$




      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




      list-manipulation






      share|improve this question









      New contributor




      Sreekz is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question









      New contributor




      Sreekz is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      share|improve this question




      share|improve this question








      edited 52 mins ago









      Lukas Lang

      6,6651930




      6,6651930






      New contributor




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      asked 19 hours ago









      SreekzSreekz

      284




      284




      New contributor




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      New contributor





      Sreekz is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






      Sreekz is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






















          3 Answers
          3






          active

          oldest

          votes


















          5












          $begingroup$

          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









          $endgroup$





















            7












            $begingroup$

            FromDigits @ StringJoin @ IntegerString @ L



            13580




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



            1353813







            share|improve this answer









            $endgroup$





















              5












              $begingroup$

              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
                19 hours ago










              • $begingroup$
                @kglr 's comment, and answer, show the proper way to use IntegerDigits. Please see those.
                $endgroup$
                – Rabbit
                18 hours ago











              Your Answer





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              3 Answers
              3






              active

              oldest

              votes








              3 Answers
              3






              active

              oldest

              votes









              active

              oldest

              votes






              active

              oldest

              votes









              5












              $begingroup$

              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









              $endgroup$


















                5












                $begingroup$

                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









                $endgroup$
















                  5












                  5








                  5





                  $begingroup$

                  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 19 hours ago









                  m0nhawkm0nhawk

                  2,62211531




                  2,62211531























                      7












                      $begingroup$

                      FromDigits @ StringJoin @ IntegerString @ L



                      13580




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



                      1353813







                      share|improve this answer









                      $endgroup$


















                        7












                        $begingroup$

                        FromDigits @ StringJoin @ IntegerString @ L



                        13580




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



                        1353813







                        share|improve this answer









                        $endgroup$
















                          7












                          7








                          7





                          $begingroup$

                          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 19 hours ago









                          kglrkglr

                          179k9199410




                          179k9199410























                              5












                              $begingroup$

                              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
                                19 hours ago










                              • $begingroup$
                                @kglr 's comment, and answer, show the proper way to use IntegerDigits. Please see those.
                                $endgroup$
                                – Rabbit
                                18 hours ago
















                              5












                              $begingroup$

                              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
                                19 hours ago










                              • $begingroup$
                                @kglr 's comment, and answer, show the proper way to use IntegerDigits. Please see those.
                                $endgroup$
                                – Rabbit
                                18 hours ago














                              5












                              5








                              5





                              $begingroup$

                              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 19 hours ago









                              RabbitRabbit

                              357139




                              357139








                              • 2




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










                              • $begingroup$
                                @kglr 's comment, and answer, show the proper way to use IntegerDigits. Please see those.
                                $endgroup$
                                – Rabbit
                                18 hours ago














                              • 2




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










                              • $begingroup$
                                @kglr 's comment, and answer, show the proper way to use IntegerDigits. Please see those.
                                $endgroup$
                                – Rabbit
                                18 hours ago








                              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
                              19 hours ago




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












                              $begingroup$
                              @kglr 's comment, and answer, show the proper way to use IntegerDigits. Please see those.
                              $endgroup$
                              – Rabbit
                              18 hours ago




                              $begingroup$
                              @kglr 's comment, and answer, show the proper way to use IntegerDigits. Please see those.
                              $endgroup$
                              – Rabbit
                              18 hours ago










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