int main(){
unsigned int p;// Positive number...
int checkValue;// Stored the return value from prime funtion...
int divisor;
printf("Please input a positive number:");
scanf("%d",&p);
// Getting the value that could check its prime...
checkValue = prime(p);
if(checkValue == 0)
printf("%d is a prime number.\n",p);
else{
divisor = biggestDivisor(p);
printf("%d is not prime number, and its biggest divisor is %d.\n",p,divisor);
}
}
int main()
{
//User input:
int inputedNumber;
printf("Please input a number no more than 2147483647:");
scanf("%d",&inputedNumber);
//Judge if its a prime number and output result.
prime(inputedNumber)?printf("This number is a prime number!"):printf("This number is not a prime number and the biggest divisor is %d",biggestDivisor(inputedNumber));
return 0;
}
