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strong number in python

A strong number is a special number whose sum of the factorial of digits is equal to the original number. For Example: 145 is a strong number. Since, 1! + 4! + 5!

from math import factorial


num=145
sum=0
for i in str(num):

    sum+=factorial(int(i))
if sum==num:
    print("strong number")
else:
    print("Not a strong number")

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