c program to find perfect number

/*********************************************************************** * File : print-perfect-number.c * Author : Saurabh Gupta * Desc : c program to find perfect number * Source : http://ccplusplus/p/c.html * Created : PM 06:33 13 January 2012 * Note : ************************************************************************/ #include<stdio.h> int main() { int n, i, sum; printf("Perfect numbers from 1 to 100 are: "); for(n=1;n<=100;n++){ i=1; sum = 0; while(i<n){ if(n%i==0) sum=sum+i; i++; } if(sum == n) { printf("%d ",n); } } printf ("\n"); return 0; } /* * OUTPUT * [sgupta@rhel6x64 c]$ gcc print-perfect-number.c -o print-perfect-number [sgupta@rhel6x64 c]$ ./print-perfect-number Perfect numbers from 1 to 100 are: 6 28 [sgupta@rhel6x64 c]$ */