Python Program to Check Whether a Number is Strong or Not

This python program checks whether a given integer number by user is Strong Number or not.

Python Source Code: Strong Number

# Python program to check Strong Number

# function to find factorial
def fact(n):
    f = 1

    for i in range(1,n+1):
        f *= i

    return f


# function to check strong
def check_strong(n):
    number_copy = n
    strong_sum = 0

    while n:
        remainder = n%10
        strong_sum += fact(remainder)
        n //= 10

    return strong_sum == number_copy

# Reading number
number = int(input('Enter number: '))

# Making decision
if check_strong(number):
    print('%d is STRONG.' %(number))
else:
    print('%d is NOT STRONG.' %(number))

Strong Number Python Output

Run 1:
----------------
Enter number: 145
145 is STRONG.

Run 2:
----------------
Enter number: 123
123 is NOT STRONG.