title: Identify all permutations of a four-digit number
body: <p>How do I, or what is a formula to, get Excel to identify all the same numbers that have the same four-digit numbers in a sequence in a worksheet. e.g. <code>1234</code>, <code>4321</code>, <code>2143</code> ? </p>
  
  <p>There are one hundred numbers but if <code>1234</code> appear together in any order on the worksheet, I want it highlighted or such.</p>