Python Program for Program to find the sum of a Series 1/1! + 2/2! + 3/3! + 4/4! +…….+ n/n! Last Updated : 11 Aug, 2022 Improve Improve Like Article Like Save Share Report You have been given a series 1/1! + 2/2! + 3/3! + 4/4! +…….+ n/n!, find out the sum of the series till nth term. Examples: Input :n = 5 Output : 2.70833 Input :n = 7 Output : 2.71806 Python3 # Python code to find smallest K-digit # number divisible by X def sumOfSeries(num): # Computing MAX res = 0 fact = 1 for i in range(1, num+1): fact *= i res = res + (i/ fact) return res n = 5 print("Sum: ", sumOfSeries(n)) # Code contributed by Mohit Gupta_OMG <(0_o)> Output: Sum: 2.70833 Time Complexity: O(N) Auxiliary Space: O(1) Please refer complete article on Program to find the sum of a Series 1/1! + 2/2! + 3/3! + 4/4! +…….+ n/n! for more details! Like Article Suggest improvement Next Program to find the sum of a Series 1/1! + 2/2! + 3/3! + 4/4! +.......+ n/n! Share your thoughts in the comments Add Your Comment Please Login to comment...