Monday, November 3, 2014

First of all we all should know what is prime number?

A prime number (or a prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself. A natural number greater than 1 that is not a prime number is called a composite number.
Example: 2,3,5,7,11 all are prime numbers.


PROGRAM

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#include<stdio.h>
int main()
{
    int i,num,temp=0;

    for(num=2;num<100;num++)
    {
        for(i=2;i<=num/2;i++)
        {
            if(num%i==0)
                temp=1;
        }
    if(temp==0)
            printf("%d ",num);
    temp=0;
    }
   return 0;
}

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