Prime number:
-A number that only divisible by the 1 or by itself is known as prime number.
Example-
prime numbers:
2,3,5,7,11,13,.......
Not prime numbers:
4,8,9,10,.....
-Here we try to check the given number that it is prime or not.
program-
#include < stdio.h>
int main()
{
int n,i;
printf("Enter Numbern");
scanf("%d",&n);
for(i=2;i< n-1;i++)
{
if(n%i==0)
{
printf("It is not Prime");
n=0;
}
}
if(n!=0)
{
printf("It is a Prime Number");
}
}
Enter Number
12
It is not Prime
Enter Number
13
It is a Prime Number