Loop control structure024

Input three numbers and find the common factors.

#include <stdio.h>
#include <conio.h>

void main ( )
{
          int        a, b, c, l, co;
          clrscr ( );
                       
          printf ("\n\t Enter first number...........:"); scanf ("%d", &a);
          printf ("\n\t Enter second number..........:"); scanf ("%d", &b);
          printf ("\n\t Enter third number...........:"); scanf ("%d", &c);
                  
          if ( a < b )
                  if ( a < c)
                          l = a;
                  else           
                          l = c;
          else                
                  if ( b < c )
                          l = b;
                  else            
                          l = c;
                                    



          printf ("\n\t The common factors are :-");
                                               
          for ( co = 1; co <= l; co++ )
          {              
                  if ( a % co == 0 && b % co == 0 && c % co == 0 )
                          printf (" %d", co );
          }
          getch ( );
}

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