Pre Calculating Digits of N! in different bases

• PREREQUISITE : Basic Logarithm Knowledge , Digits of Factorial

• EXPLANATION :

  
  
  Idea is very simple . In past , for one iteration we divided log10(i) by log10(b) and added this to our result . But this time we have precalculated only log10(i) by assuming the base 10 . We have also stored the sum in digit[] array for corresponding iteration. Then for every call of calculating_digits_of_n_factorial_in_b_base() function we have divided the precalculated value by log10(b) and returned the floor value .