C program to check whether number is Perfect Number or not
Perfect Number - A perfect number is a positive integer number which is equals to the sum of it's proper positive divisors excluding the number itself. For example 6 is a perfect number because it’s proper divisors are 1, 2, 3 and it’s sum is equals to 6.
In this program we will read an integer number and check whether it is Perfect Number or not. To check perfect number we have to find all divisors of that number and find their sum, if sum of divisors is equal to number it means number is Perfect Number.
Check Perfect Number using C program
Using User Define Function
Output:
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