C program to check given number is perfect number or not

What is perfect number?


A number is considered as perfect number when it satisfies the below conditions.

  • It should be a positive number
  • When the sum of it’s divisors (excluding that number) are equal to that number

Example for perfect numbers:

6, 28, 496, 8128

Description:

1 + 2 + 3 = 6


1 + 2 + 4 + 7 + 14 = 28

C program to check given number is perfect number or not:

Please refer below C program to check whether given number is perfect number or not.

Output:

Please enter a number to check perfect number

28

Entered number 28 is a perfect number

 



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