Write a program to calculate factorial of a number.

 

Answer:

num = int(input( "Enter a number: " ))

fact = 1

if num < 0 :

print( "Sorry, factorial does not exist for negative numbers" )

elif num == 0 :

print( "The factorial of 0 is 1" )

else:

    for i in range( 1 , num + 1 ):

        fact = fact * i

print("factorial of ", num, " is ", fact)

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.