Solution - Simplification or other simple results

Step  1  :

 1.1     10 = 2•5

(10)¹⁹ = (2•5)¹⁹ = 2¹⁹ • 5¹⁹

Equation at the end of step  1  :

  3 • (219•519)

Step  2  :

Final result :

  (3•219•519)