/Ruby/Number of trailing zeros in a factorial of a number.

Number of trailing zeros in a factorial of a number.

# Number of trailing zeros in a factorial of a number

def zeros(n)
  zeros = 0
  while (n > 0) 
    n = (n / 5).floor
    zeros += n
  end
  zeros  
end

print "Number of trailing zeros = ", zeros(6);   # 1
print "\nNumber of trailing zeros = ", zeros(30);  # 7

Similar codes

0 vote182 views1 answer
Transfer encoding chunked ruby
Ruby
0 vote193 views1 answer
Rspec create list
Ruby
0 vote190 views1 answer
Ruby extract number from string
Ruby
0 vote183 views1 answer
Filter through array of arrays ruby
Ruby
0 vote191 views1 answer
Start rails server on different port
Ruby
1 vote189 views1 answer
Ruby round
Ruby
0 vote186 views1 answer
Random number rails
Ruby
0 vote198 views3 answers
Robux gift
Ruby
0 vote195 views1 answer
True sting to true in rails
Ruby
4 votes164 views1 answer
Rails current_path
Ruby