Solution - Simplification or other simple results

5^{15} 3 = 1.01725 \cdot 10^{10}

5^15/3=1.01725*10^10

Step 1 :

 1.1     125 = 5³

(125)⁵ = (5³)⁵ = 5¹⁵

            5¹⁵
 Simplify   ———
             3

  5¹⁵                                  
  ——— = 1.01725 • 10¹⁰ 
   3

How did we do?