C-programming - C program to find prime numbers from a given number, C++ program to find prime number

C program to find prime numbers from a given number

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

   void main()
   {
   int n,i,c=0;
   clrscr();
   printf("enter the number:");
   scanf("%d",&n);

   for(i=1;i<=n;i++)
   {
      if(n%i==0)
      {
        c=c+1;
      }
   }

   if(c==2)
      printf("number is prime");
   else
      printf("number is not prime");

   getch();

   } 

Simple Solution to find Prime number in C program

  startX, endX;
  for(i=startX; i<=endX; i++) {
  for(j=2; j<i; j++) {
   p=i%j;
   if(p!=0) {
     // you know it is not prime.
   } // now get the prime number 
     // when p==0 after checking value of j

  } // on

The topic on C-programming - C program to find prime numbers from a given number is posted by - Nandhu

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