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$100!=93326215443944152681699238856266700490715968264381621468592963895217599993229915608941463976156518286253697920827223758251185210916864000000000000000000000000$

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    <math> 
      <mrow> 
        <mn> 100 </mn> 
        <mo>!</mo> 
      </mrow> 
      <mo> = </mo> 
      <mn>93326215443944152681699238856266700490715968264381621468592963895217599993229915608941463976156518286253697920827223758251185210916864000000000000000000000000 
      </mn> 
    </math>