Get word from string using Linq


How can I get the serialnumber(1234556789) from a string using Linq?
(the word serial# will always be before the serial number)

string test = "XXX XXX XXXX, XXXX serial# 1234556789";
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Is it possible to use RegularExpression instead of LINQ?

var serial = System.Text.RegularExpressions.Regex.Match("xxxx x x x x xx x serial# 1234568","serial#\s?(\d+)", System.Text.RegularExpressions.RegexOptions.IgnoreCase).Groups[0].Value

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ulf-jzlAuthor Commented:
Error: "Unrecognized escape sequence" on \s and \d
ulf-jzlAuthor Commented:
solved it
var serial = Regex.Match(line, @"serial#\s?(\d+)", RegexOptions.IgnoreCase).Groups[1].Value;
ulf-jzlAuthor Commented:
Thx man! :)
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