Nice to meet you, i am a newbie i would like to ask a question that bothers me out :

1).add the decimal representation of N! (5 <= N <= 1,000,000) is simply the multiplicity of the prime factor 5 in N! to my script.

2). I wanted to ask how the output of case#3:118 became case#3:27,whether the problem is

string or an Integer? Please help me out.

here's my code code:

Output :

Sample Input:118

Sample Output:

Case#3:118

The number of trailing zeroes in 118

factorial is 27