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C Program-Prime Number

Salim Ahmed Ansari
13/01/2017 0 0

/*WAP to print a number entered by the user is prime or not*/

//Header files

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

//Main function

void main()
{
 int num,i;

//Function for clearing screen
 clrscr();
 printf("Enter a number: ");
 scanf("%d",&num);
 i=2;
 while(i<=num-1)
 {
  if(num%i==0)
  {
   printf("Not a prime number!");
   break;
  }
  i++;
 }
 if(i==num)
 {
  printf("\nPrime Number!");
 }

//Function for holding screen
 getch();
}

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