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To generate all the prime numbers between 1 and n

Wednesday 3 July 2013
#include <stdio.h>


void main()

{

    int no,counter,counter1,check;
    clrscr();

    printf(“<———————–PRIME NO. SERIES————————>”);
    printf(“\n\n\n\t\t\tINPUT THE VALUE OF N: “);
    scanf(“%d”,&no);
    printf(“\n\n THE PRIME NO. SERIES Between 1 TO %d : \n\n”,no);

    for(counter = 1; counter <= no; counter++)
    {
        check = 0;

        //THIS LOOP WILL CHECK A NO TO BE PRIME NO. OR NOT.

        for(counter1 = counter-1; counter1 > 1 ; counter1–)
        if(counter%counter1 == 0)
        {
            check++;        // INCREMENT CHECK IF NO. IS NOT A PRIME NO.
            break;
        }
        if(check == 0)
        printf(“%d\t”,counter);
    }
    getch();
}

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