is my usage of replace is right, asking all i am getting is 14 when i am running in the trycf my errorMsg is 14 and i want to check replace 14 with 11

<cfset Replacelist(Errormsg,'3,4,5,6,7,8,9,11,12,13,14,15,16,17,18','1,2,3,4,5,6,7,8,9,10,11,12,13,14,15')>