Perfect Number in Telugu by C Coding | C language Institutes in Guntur | Coding Institutes in guntur

Perfect number in C language

This program demonstrates how to find all perfect numbers between 1 and 1000 in C programming language. A perfect number is a positive integer that is equal to the sum of its proper positive divisors – that is, the sum of its positive divisors excluding the number itself. The first perfect number is 6, as 1 + 2 + 3 = 6.

The algorithm for finding perfect numbers is as follows:

• Loop through numbers from 1 to 1000.

• For each number, find the sum of its proper divisors. This is done using another nested loop that divides the number by integers from 1 to the number/2. If an integer is a divisor, it is added to the sum.
• If the number is equal to the sum of its proper divisors, it is a perfect number and is printed.
The C code implements the above algorithm. It begins by including the standard input/output header. Then, a loop iterates from 1 to 1000. Inside the loop, another nested loop divides i by integers from 1 to i/2. If the remainder is 0, meaning j is a divisor, j is added to the sum.

After the nested loop, if i equals sum, it means i is a perfect number and is printed. The program’s output shows 6 and 28 as the only perfect numbers between 1 and 1000. This demonstrates a simple method to find perfect numbers in C programming. The concept can be extended to find larger perfect numbers.

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