Question

write a program to find out the given number is prime or not​

Answer 1

#include <stdio.h>

int main()

{

int n, i, flag = 0;

printf("Enter a positive integer: ");

scanf("%d", &n);

for(i = 2; i <= n/2; ++i)

{

// condition for nonprime number

if(n%i == 0)

{

flag = 1;

break;

}

}

Answer 2

Answer:

int c=0,n;

(where n is the number)

for(int i=1;i<=n;i++)

{

if(n%i==0)

,{

c++;

}

}

if(c==2)

System.out.println(Prime number)

else

Sopln(not a prime number)