24 August 2018

C Program to find prime number between 1 and n

//Program to find prime number between 1 and n
#include<stdio.h>
int main()
{
 int n,m,i=2,is_prime=1;
 printf("Enter up to which number you want to find prime numbers:");
 scanf("%d",&m);
 for(n=2;n<=m;n++)
        {
      for(i=2;i<n;i++)
        {
             if(n%i==0)   
                   {
                   is_prime=0;
               break;
                    }
            else
             is_prime=1;
        }
        if(is_prime)
            printf(" %d  ",n);
    }
    printf("\n");
return 0;
}
       

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