HELP with a C PROGRAM?

int isamicable(int nNum)


{


int a, j, nSum=0, nSum2=0;


int nMax=nNum/2;


for( j=1; j%26lt;=nMax ; j++) {


if(nNum%j==0)


nSum+=j; }


for( a=1; a%26lt;=(nSum/2) ; a++) {


if(nSum%a==0)


nSum2+=a; }


if(nSum2==nSum){


printf("\n%d is perfect", nNum); }


else if(nSum2==nNum)


printf("\n%d is amicable with %d", nNum, nSum);


else


return 0;


}





int isprime(int nNum)


{


int nMax=nNum/2;


int j,a=0;


for(j=1; j%26lt;=nMax ;j++){


if(nNum%j==0)


{ a+=1; } }


if((a==2)||(a==1))


printf("\n%d number is prime", nNum);


else


return 0;


}





int isperfect(int nNum)


{


int nSum=0;


int nMax=nNum/2;


int j=2;


do {


if(nNum%j==0)


nSum+=j;


j++;


}while(j%26lt;=nMax);


if(nSum==nNum)


printf("\n%d is perfect", nNum);


else


return 0;


}


The main function asks input from the user and calls the three function. The problem is that when the program runs and I type '6' it displays" is perfect" two times instead of one.The same thing happens when i enter amicable number and prime number. PLS HELP

HELP with a C PROGRAM?
That's because you print it in two different functions: isamicable() and isperfect() at the lines:





if(nSum2==nSum){


printf("\n%d is perfect", nNum); }





and





if(nSum==nNum)


printf("\n%d is perfect", nNum);