Even or Odd Number and Factorial of a Number in Python Programming

1.To Check if the given number is even or odd

If a number is completely divided by 2 then it is even number. When the number is divided by 2, we use the remainder operator %  to calculate the remainder. If the remainder is not zero, the number is odd.

SOURCE CODE:-

n=int(input("enter any number:- "))
if(n%2==0):
    print(n,'is even number')
else:
    print(n,'is odd number')

OUTPUT

1st Run

enter any number:- 2

2 is even number

2nd Run

enter any number:- 3

3 is odd number

In the above code we use "Simple if" statement.  In the above program, we ask the user for input and check if the number is odd or even.

2.Factorial number

Factorial of a number defined as the product of all numbers from 1 to given number.

For example  5!(5 factorial)=5*4*3*2*1 is 120.

Note= factorial of 0 is 1

SOURCE CODE

n=int(input("Enter any number:- "))
fact=1
for i in range(1,n+1):
    fact=fact*i
print('factorial of',n,'is',fact)

OUTPUT

1st Run

Enter any number:- 6

factorial of 6 is 720

2nd Run

Enter any number:- 4

factorial of 4 is 24

In the above program we used "for loop" to find factorial of a number.

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