Saturday 29 March 2014

Program To Check Whether Given Two Numbers Are Amicable Numbers or Not

/*Amicable Numbers are two numbers so related that the sum of the proper divisors of the one is equal to the other, unity being considered as a proper divisor but not the number itself. Such a pair is (220, 284).*/


main()
{
 int num1, num2, i, t1=0,t2=0;
 clrscr();
 printf("Enter two numbers to check whether they are amicable numbers or not. --> ");
 scanf("%d%d",&num1,&num2);
 for(i=1;i<num1;i++)
 {
  if(num1%i==0)
   t1=t1+i;
 }
 for(i=1;i<num2;i++)
 {
  if(num2%i==0)
   t2=t2+i;
 }
 if(t1==num2 && t2==num1)
  printf("\(%d,%d\) are amicable numbers.",num1,num2);
 else
  printf("\(%d,%d\) are not amicable numbers.",num1,num2);
 getch();
}

Output:



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