/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 vote324 views1 answer
Rails logger color
Ruby
0 vote375 views1 answer
Rails column datetime
Ruby
1 vote362 views3 answers
Rails array pop first n elements
Ruby
1 vote357 views1 answer
Ruby check if path is a directory
Ruby
2 votes353 views2 answers
Ruby push array
Ruby
0 vote342 views1 answer
Rails duplicate record
Ruby
2 votes309 views1 answer
Ruby tr
Ruby
0 vote309 views1 answer
Rails image_tag size
Ruby
0 vote347 views1 answer
Ruby unshift method
Ruby
0 vote371 views1 answer
Location of a string ruby
Ruby